ill

I1L1L1
/ɪl/

adjective

Evil; wicked (of people).

“ill manners; ill will”

Opposite
finehalehealthyin good healthwell
CommonFirst used 13th–19th c.Scrabble 3

Meanings

ill1

adjectiveill (comparative iller or more ill, superlative illest or most ill)

comparative iller · comparative more ill · superlative illest · superlative most ill

  1. obsoleteEvil; wicked (of people).First known use 13th–19th c.

    St. Paul chose to magnify his office when ill men conspired to lessen it.

    1709 December 6, Francis Atterbury, A Sermon Preached before the Sons of the Clergy, at their Anniversary-Meeting, in the Church of St. Paul
    1 more example

    A man who is conscious of having an ill character, cannot justly be angry with those who neglect and slight him.

    1749, Henry Fielding, The History of Tom Jones, a Foundling, volume (please specify |volume=I to VI), London: A[ndrew] Millar, […], →OCLC
  2. archaicMorally reprehensible (of behaviour etc.); blameworthy.First known use 13th c.

    ‘Go bring her. It is ill to keep a lady waiting.’

    1999, George R.R. Martin, A Clash of Kings, Bantam, published 2011, page 2
  3. Indicative of unkind or malevolent intentions; harsh, cruel.First known use 14th c.

    He suffered from ill treatment.

  4. Unpropitious, unkind, faulty, not up to reasonable standard.

    ill manners; ill will

    1 more example

    […]his lordship was out of humour. That was the way Chollacombe described as knaggy an old gager as ever Charles had had the ill-fortune to serve. Stiff-rumped, that's what he was, always rubbing the rust, or riding grub, like he had been for months past.

    1959, Georgette Heyer, chapter 1, in The Unknown Ajax
  5. Unwell in terms of health or physical condition; sick.First known use 15th c.

    mentally ill people

    3 more examples

    I've been ill with the flu for the past few days.

    Sue made herself ill through overwork.

    “We desperately needed the nursing support because our ICUs are so inundated with critically ill Covid patients,” Brown said.

    2021 August 14, Christina Maxouris, “‘Bursting at the seams’: Full ICUs are creating a dangerous ER backlog and forcing hospitals to cancel surgeries”, in CNN
  6. Nauseated; having an urge to vomit.First known use 20th c.

    Seeing those pictures made me ill.

    Synonyms: disgusted, nauseated, nauseous, sick, sicken

  7. slangdancingSublime, with the connotation of being so in a singularly creative way.

    This is the illest beat I've ever heard.

    1 more example

    Biggie Smalls is the illest / Your style is played out, like Arnold wonderin "Whatchu talkin bout, Willis?"

    1994, Biggie Smalls, “The What”

    Synonyms: dope

  8. slangExtremely bad (bad enough to make one ill). Generally used indirectly with to be.

    That band was ill.

  9. datedUnwise; not a good idea.

    They arrested everybody—and it is ill to resist a drunken Tommy with a loaded rifle!

    1914, Indian Ink, volume 1, page 32
    1 more example

    Oh that when the devil and flesh entice the sinner to sport with and make a mock of sin, Prov. x. 23, he would but consider, it is ill jesting with edged tools, it is ill jesting with unquenchable burnings; […]

    1672, George Swinnock, The Incomparableness of God
  10. AppalachiaBad-tempered.

    Synonyms: diseased, poorly, sick, under the weather, unwell, ailing

adverbill (comparative worse or more ill, superlative worst or most ill)

comparative worse · comparative more ill · superlative worst · superlative most ill

  1. Not well; imperfectly, badly

    Such jealousy ill becomes her; she can ill afford another gaffe like that.

    5 more examples

    He would have conversed as usual; but his attempts were so ill seconded, that he was fain to take refuge in the letters that lay beside him.

    1837, L[etitia] E[lizabeth] L[andon], “A Proposal of Marriage”, in Ethel Churchill: Or, The Two Brides. […], volume I, London: Henry Colburn, […], →OCLC, page 126

    Within, I found it, as I had expected, transcendently dismal. The slowly changing shadows waved on it from the heavy trees, were doleful in the last degree; the house was ill-placed, ill-built, ill-planned, and ill-fitted.

    1859 December 13, Charles Dickens [et al.], “(please specify the name of the story)”, in Charles Dickens, editor, The Haunted House. The Extra Christmas Number of All the Year Round […], volume II, London: […] C[harles] Whiting, […], →OCLC

    In both groups, however, we find copious and intricate speciation so that, often, species limits are narrow and ill defined.

    1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 3

    His inflexibility and blindness ill become a leader, for a leader must temper justice with mercy.

    1994, Nelson Mandela, Long Walk to Freedom: The Autobiography of Nelson Mandela, London: Abacus, published 2010, page 541

    Is it because this supposes an undifferentiated violence towards others and oneself that I could ill imagine in a woman?

    2006, Julia Borossa (translator), Monique Canto-Sperber (quoted author), in Libération, 2002 February 2, quoted in Élisabeth Badinter (quoting author), Dead End Feminism, Polity, page 40

    Synonyms: illy

nounill (countable and uncountable, plural ills)

plural ills

  1. countableuncountableoften pluralizedTrouble; distress; misfortune; adversity.

    Music won't solve all the world's ills, but it can make them easier to bear.

    2 more examples

    That makes us rather bear those ills we have / Than fly to others that we know not of.

    c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene i]

    Then he commenced to talk, really talk. and inside of two flaps of a herring's fin he had me mesmerized, like Eben Holt's boy at the town hall show. He talked about the ills of humanity, and the glories of health and Nature and service and land knows what all.

    1913, Joseph C[rosby] Lincoln, chapter IV, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC
  2. countableuncountableHarm or injury.

    I wouldn't want you to do me ill.

    1 more example

    Loue worketh no ill to his neighbour, therefore loue is the fulfilling of the Law.

    1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Romans 13:10
  3. countableuncountableEvil; moral wrongfulness.

    Strong virtue, like strong nature, struggles still, / Exerts itself, and then throws off the ill.

    1675, John Dryden, Aureng-zebe: A Tragedy. […], London: […] T[homas] N[ewcomb] for Henry Herringman, […], published 1676, →OCLC, (please specify the page number)
  4. countableuncountableA physical ailment; an illness.

    I am incapacitated by rheumatism and other ills.

  5. USslanguncountablePCP, phencyclidine.
verbill (third-person singular simple present ills, present participle illing, simple past and past participle illed)

present singular third person ills · participle present illing · participle past illed · past illed

  1. datedintransitiveslangTo behave aggressively.

    1989, Rob'n'Raz feat. Leila K, Got to Get Step back, relax, and chill as I thrill / The K is back, I'm not here to ill / Layin' knowledge through the mic / Hype with a beat like this for your delight

    1 more example

    D.M.C.: You been illin' lately. Run: So, I'm illin'. Am I illin'? Chillin'! You know what I'm sayin'? Chillin'.

    1985, Ralph Farquhar, Krush Groove

ILL2

nounILL (plural ILLs)

plural ILLs

  1. abbreviationinitialismInitialism of interlibrary loan.

Ill3

proper nounthe Ill
  1. A river in France, tributary to the Rhine.

Synonyms & antonyms

adjectiveNauseated; having an urge to vomit.

adjectiveSublime, with the connotation of being so in a singularly creative way.

Similar

adverbNot well; imperfectly, badly

Similar

bad

Similar

antonym(s) of “suffering from a disease”

Opposite
finehalehealthyin good healthwell

antonym(s) of “bad”

Opposite

antonym(s) of

Opposite
Opposite

More synonyms by meaning

adjectiveaffected by an impairment of normal physical or mental function

Opposite

adjectiveresulting in suffering or adversity

Similar

adjectivedistressing

Similar

adjectiveindicating hostility or enmity

Similar

adjectivepresaging ill fortune

nounan often persistent bodily disorder or disease; a cause for complaining

adverb(‘ill’ is often used as a combining form) in a poor or improper or unsatisfactory manner; not well

Opposite

adverbunfavorably or with disapproval

Similar
Opposite

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

ill · adjective, adverb, noun, verb

  1. Proto-Indo-European*h₁elḱ-
  2. Proto-Germanic*ilhilaz
  3. Old Norseíllr
  4. Middle Englishille“evil; wicked”
  5. Englishill

From Middle English ille (“evil; wicked”), from Old Norse íllr (adjective), ílla (adverb), ílt (noun), from Proto-Germanic *ilhilaz, from Proto-Indo-European *h₁elḱ- (whence Latin ulcus (“sore”), Ancient Greek ἕλκος (hélkos, “wound, ulcer”), Sanskrit अर्शस् (árśas, “hemorrhoids”)). Cognates Cognate with Scots and Yola ill, Danish ilde (“bad”), Faroese, Icelandic illur (“bad, ill, wicked”), Norwegian Bokmål, Norwegian Nynorsk ille (“bad”), Swedish illa (“badly; poorly”).

Full word history & related roots →

Ill · proper noun

  1. FrenchIll
  2. EnglishIll

From French Ill.

Full word history & related roots →

Translations

Afrikaans siek
  • siekin poor health, suffering from a disease
Ancient Greek ἄρρωστος
  • ἄρρωστος (árrhōstos)in poor health, suffering from a disease
Arabic مَرِيض
  • مَرِيض (marīḍ)in poor health, suffering from a disease
Basque gaixo
  • gaixoin poor health, suffering from a disease
Bengali অসুস্থ
  • অসুস্থ (ośustho)in poor health, suffering from a disease
Bulgarian бо́лен, зле
  • бо́лен (bólen)in poor health, suffering from a disease
  • зле (zle)not well
  • щета (šteta)something damaging
  • болест (bolest)a physical ailment; an illness
  • беда (beda)a problem
  • трудност (trudnost)a problem
  • мъчнотия (măčnotija)a problem
Catalan malalt
  • malaltin poor health, suffering from a disease
Chinese Cantonese 病
  • 病 (beng⁶)in poor health, suffering from a disease
Chinese Mandarin 病
  • 病 (bìng)in poor health, suffering from a disease
Czech nemocný
  • nemocnýin poor health, suffering from a disease
Danish kvalm, syg
  • kvalmhaving an urge to vomit
  • sygin poor health, suffering from a disease
Dutch misselijk, ziek
  • misselijkhaving an urge to vomit
  • ziekin poor health, suffering from a disease
  • ziekein poor health, suffering from a disease
  • krankin poor health, suffering from a disease
Esperanto malsana
  • malsanain poor health, suffering from a disease
Estonian haige
  • haigein poor health, suffering from a disease
Finnish sairas
  • sairasin poor health, suffering from a disease
French écœuré, écœurée
  • écœuréhaving an urge to vomit
  • écœuréehaving an urge to vomit
  • sin hip-hop slang: sublime
  • maladein poor health, suffering from a disease
  • malnot well
German übel, schlecht
  • übelhaving an urge to vomit
  • schlechthaving an urge to vomit
  • krankin poor health, suffering from a disease
  • siechin poor health, suffering from a disease
  • Übela problem
Greek άρρωστος
  • άρρωστος (árrostos)in poor health, suffering from a disease
Hawaiian maʻi
  • maʻiin poor health, suffering from a disease
Hebrew חוֹלֶה
  • חוֹלֶה (kholé)in poor health, suffering from a disease
Hindi अस्वस्थ, बीमार
  • अस्वस्थ (asvasth)in poor health, suffering from a disease
  • बीमार (bīmār)in poor health, suffering from a disease
  • रोगी (rogī)in poor health, suffering from a disease
Hungarian beteg, rosszul
  • betegin poor health, suffering from a disease
  • rosszulnot well
Icelandic veikur, lasinn
  • veikurin poor health, suffering from a disease
  • lasinnin poor health, suffering from a disease
  • sjúkurin poor health, suffering from a disease
Indonesian mual, jijik
  • mualhaving an urge to vomit
  • jijikhaving an urge to vomit
  • sakitin poor health, suffering from a disease
Irish adhascaideach, tinn
  • adhascaideachhaving an urge to vomit
  • tinnin poor health, suffering from a disease
Italian malato
  • malatoin poor health, suffering from a disease
Japanese 病気
  • 病気 (byōki)in poor health, suffering from a disease
Korean 병들다, 앓다
  • 병들다 (byeongdeulda)in poor health, suffering from a disease
  • 앓다 (alta)in poor health, suffering from a disease
Latin īnfirmus, aeger
  • īnfirmusin poor health, suffering from a disease
  • aegerin poor health, suffering from a disease
  • aegrōtusin poor health, suffering from a disease
Latvian slims, sasirdzis
  • slimsin poor health, suffering from a disease
  • sasirdzisin poor health, suffering from a disease
Lithuanian sergantis
  • sergantisin poor health, suffering from a disease
Malay sakit, gering
  • sakitin poor health, suffering from a disease
  • geringin poor health, suffering from a disease
Māori mahaki, maki
  • mahakiin poor health, suffering from a disease
  • makiin poor health, suffering from a disease
  • wheoriin poor health, suffering from a disease
  • tarutaruheain poor health, suffering from a disease
  • manauheain poor health, suffering from a disease
  • māuiuiin poor health, suffering from a disease
Norwegian kvalm
  • kvalmhaving an urge to vomit
Norwegian Bokmål syk, sjuk
  • sykin poor health, suffering from a disease
  • sjukin poor health, suffering from a disease
Persian بیمار, مریض
  • بیمار (bimâr)in poor health, suffering from a disease
  • مریض (mariz)in poor health, suffering from a disease
Polish chory, źle
  • choryin poor health, suffering from a disease
  • źlenot well
  • krzywdasomething damaging
  • problema problem
Portuguese doente
  • doentein poor health, suffering from a disease
Romanian bolnav, abătut
  • bolnavin poor health, suffering from a disease
  • abătutin poor health, suffering from a disease
Russian больно́й, хво́рый
  • больно́й (bolʹnój)in poor health, suffering from a disease
  • хво́рый (xvóryj)in poor health, suffering from a disease
Scottish Gaelic tinn
  • tinnin poor health, suffering from a disease
Slovak chorý, nemocný
  • chorýin poor health, suffering from a disease
  • nemocnýin poor health, suffering from a disease
Spanish mal, mareado
  • malhaving an urge to vomit
  • mareadohaving an urge to vomit
  • enfermoin poor health, suffering from a disease
  • mareadoin poor health, suffering from a disease
  • malnot well
Swahili -gonjwa
  • -gonjwain poor health, suffering from a disease
Swedish illamående, sjuk
  • illamåendehaving an urge to vomit
  • sjukin poor health, suffering from a disease
Tagalog may sakit
  • may sakitin poor health, suffering from a disease
Thai ป่วย, ไม่สบาย
  • ป่วย (bpùai)in poor health, suffering from a disease
  • ไม่สบาย (mâi-sà-baai)in poor health, suffering from a disease
Turkish hasta, sayrı
  • hastain poor health, suffering from a disease
  • sayrıin poor health, suffering from a disease
Ukrainian хво́рий
  • хво́рий (xvóryj)in poor health, suffering from a disease
Urdu بیمار, مریض
  • بیمار (bīmār)in poor health, suffering from a disease
  • مریض (marīz)in poor health, suffering from a disease
  • علیل (alīl)in poor health, suffering from a disease
Vietnamese bệnh, ốm
  • bệnhin poor health, suffering from a disease
  • ốmin poor health, suffering from a disease
Welsh sâl
  • sâlin poor health, suffering from a disease
Yiddish קראַנק, קרענקלעך
  • קראַנק (krank)in poor health, suffering from a disease
  • קרענקלעך (krenklekh)in poor health, suffering from a disease
  • געלעגן צו בעט (gelegn tsu bet)in poor health, suffering from a disease

Rhymes & wordplay

Rhymes with ill

All rhymes →

Anagrams

Cite this entry
APA

ill. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ill

MLA

“ill.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ill. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “ill,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ill.

Source: ill on Wiktionary, CC BY-SA 4.0.