nonplussed

non·plussed
N1O1N1P3L1U1S1S1E1D2
UK/nɒnˈplʌst/US/ˌnɑnˈplʌst/

adjective

Unsure how to act or respond; bewildered, perplexed.

Opposite
UncommonFirst used early 17th c.Scrabble 13

Meanings

adjectivenonplussed (comparative more nonplussed, superlative most nonplussed)

comparative more nonplussed · superlative most nonplussed · alternative non-plussed

  1. Unsure how to act or respond; bewildered, perplexed.First known use early 17th c.

    I could not discern what she meant, and I would not ask her: I was nonplussed.

    1853 January, Currer Bell [pseudonym; Charlotte Brontë], “A Burial”, in Villette. […], volume III, London: Smith, Elder & Co., […], →OCLC, page 285
    4 more examples

    [N]ote the honeſt Quaker vvas nonpluſſed, and greatly ſurprized at that Queſtion.

    Roxana

    1724, [Daniel Defoe], The Fortunate Mistress; […] [Roxana], London: […] E. Applebee, […], published 1740, →OCLC, page 277

    For the nonce he was rather nonplussed but inasmuch as the duty plainly devolved upon him to take some measures on the subject he pondered suitable ways and means during which Stephen repeatedly yawned.

    1922 February 2, James Joyce, “[Episode 16: Eumaeus]”, in Ulysses, Paris: Shakespeare and Company […], →OCLC, part III [Nostos], page 569

    You couldn’t have told it from my manner, but I was feeling more than a bit nonplussed. The spectacle before me was enough to nonplus anyone.

    1934 October 5, P[elham] G[renville] Wodehouse, chapter II, in Right Ho, Jeeves, London: Herbert Jenkins […], →OCLC, page 24

    In the opposite direction the allowance of 103 min. for the 83.8 miles from Waterloo to Salisbury, which has remained untouched since the worst period in the war, when it included a Woking stop that long since has been excised, was another timing that left drivers completely nonplussed at times as to how to fill it out.

    1949 July and August, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 257

    Synonyms: confounded, vexed, lost for words, addle-pated, addled, addlepated, at a loss, at a loss for words · Antonyms: plussed

  2. USinformalnonstandardUnaffected, unfazed; unimpressed.First known use mid 20th c.

    And while many of us might be a little taken aback if Mom showed up at our offices, Secrist is utterly nonplussed, even happy about it.

    2002 April 14, Debra Pickett, “Sunday lunch with”, in Chicago Sun-Times, Chicago, Ill.: Chicago Public Media, →ISSN, →OCLC, page 24
    4 more examples

    "I regard Dean [W. P.] Baddeley's gambling activities with embarrassment and dismay," said Anglican dean of Melbourne S. Barton Babbage. […] The Rev. Baddeley remained nonplussed. "I don't intend to make a habit of going to the races but I feel clergymen should mix as our Lord did with all walks of life," Dr. Baddeley said.

    1960 August 2, “Cleric’s error was to win his wagers”, in Oakland Tribune, home edition, volume CLXXIII, number 33, Oakland, Calif.: Oakland Tribune, →ISSN, →OCLC, page E7, column 6

    One cannot help but wonder how the unnecessary death of 10 men sat on [John Charles] Fremont's conscience. From all appearances, he seemed nonplussed and never was remorseful or contrite.

    2003 September, Gerald F. Kreyche, “John Charles Fremont and the Exploration of the American West”, in USA Today, volume 132, number 2700, New York, N.Y.: Society for the Advancement of Education, →ISSN, →OCLC, archived from the original on 13 Mar 2023, pages 52–57

    My screams woke everyone on the boat the first night when a large bat flapped up against the screen door to our small cabin, with its foam double beds. My brother-in-law, Mike, was nonplussed: "Why would you get excited over a little bug like that?"

    2004 June, Shannon Thompson, “Houseboating on California’s Shasta Lake”, in Sunset, volume 212, number 6, Oakland, Calif.: Sunset Publishing, published 2 September 2004 (online), →ISSN, →OCLC, archived from the original on 12 Aug 2022, page 140

    The lions in question were nonplussed. "They just stuck their noses into the wind, looked around and slumped down again into the grass," the now 73-year-old [Jonathan Scott] recalls.

    2022 August 14, Joe Shute, “The rise and fall of the pride that inspired the Lion King”, in Chris Evans, editor, The Daily Telegraph, London: Telegraph Media Group, →ISSN, →OCLC, archived from the original on 30 Nov 2022

    Synonyms: blasé, jaded, adiaphroistic, apathetic, apathistical, blasé, blithe, deaf · Antonyms: plussed

verb

alternative non-plussed

  1. participlepastsimple past and past participle of nonplus

Synonyms & antonyms

More synonyms by meaning

adjectivefilled with bewilderment

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*pleh₁-“to fill”
  2. Latinnōn plūs“no further, no more”
  3. Englishnonplussed

From nonplus (“state of bewilderment or perplexity”, noun) or nonplus (“to bewilder or perplex (someone)”, verb) + -ed (suffix forming adjectives, and the past tense and past participle forms of verbs). Nonplus (noun) is derived from Latin nōn plūs (“no further, no more”), from nōn (“not”) + plūs (“additionally, more; further”) (ultimately from Proto-Indo-European *pleh₁- (“to fill”)). The etymological sense is similar to being left speechless as a result of confusion: the nonplussed person can say or do “no more”. Adjective sense 2 (“unaffected”) is probably from a misinterpretation of the first element of the word as the prefix non- meaning “not”.

Full word history & related roots →

Translations

Bulgarian шашарди́сан
  • шашарди́сан (šašardísan)unsure how to act or respond — see also bewildered, perplexed
Dutch verbluft
  • verbluftunsure how to act or respond — see also bewildered, perplexed
Finnish hämmentynyt, ymmällään
  • hämmentynytunsure how to act or respond — see also bewildered, perplexed
  • ymmälläänunsure how to act or respond — see also bewildered, perplexed
French déconcerté, interloqué
  • déconcertéunsure how to act or respond — see also bewildered, perplexed
  • interloquéunsure how to act or respond — see also bewildered, perplexed
  • perplexeunsure how to act or respond — see also bewildered, perplexed
German verblüfft
  • verblüfftunsure how to act or respond — see also bewildered, perplexed
Hindi भौचक
  • भौचक (bhaucak)unsure how to act or respond — see also bewildered, perplexed
Hungarian döbbent
  • döbbentunsure how to act or respond — see also bewildered, perplexed
Italian perplesso
  • perplessounsure how to act or respond — see also bewildered, perplexed
Māori matekiri, pākira
  • matekiriunsure how to act or respond — see also bewildered, perplexed
  • pākiraunsure how to act or respond — see also bewildered, perplexed
  • rōrīunsure how to act or respond — see also bewildered, perplexed
Polish skonsternowany
  • skonsternowanyunsure how to act or respond — see also bewildered, perplexed
Portuguese desconcertado, perplexo
  • desconcertadounsure how to act or respond — see also bewildered, perplexed
  • perplexounsure how to act or respond — see also bewildered, perplexed
Russian расте́рянный
  • расте́рянный (rastérjannyj)unsure how to act or respond — see also bewildered, perplexed
Spanish perplejo
  • perplejounsure how to act or respond — see also bewildered, perplexed
Swedish ställd
  • ställdunsure how to act or respond — see also bewildered, perplexed

Rhymes & wordplay

Rhymes with nonplussed

All rhymes →
Cite this entry
APA

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

MLA

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

Chicago

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

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