pestilential

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/ˌpɛstɪˈlɛnʃi.əl//ˌpɛstɪˈlɛnʃəl/

adjective

Producing, spreading, promoting or infected with pestilence; causing infection. (of people, animals, places or substances)

“pestilential fever; pestilential sweating”

RareScrabble 14

Meanings

adjectivepestilential (comparative more pestilential, superlative most pestilential)

comparative more pestilential · superlative most pestilential

  1. Of or relating to pestilence or plague.
    1. Producing, spreading, promoting or infected with pestilence; causing infection. (of people, animals, places or substances)

      1675, John Dryden, The Mistaken Husband, London: J. Magnes and R. Bentley, Act V, p. 63, What do you fear? Why do you shun me thus. […] I am not Pestilential, nor Leaprous.

      3 more examples

      […] the Winter keen Pour’d out his Waste of Snows, and Summer shot His pestilential Heats:

      a. 1749 (date written), James Thomson, “Spring”, in The Seasons, London: […] A[ndrew] Millar, and sold by Thomas Cadell, […], published 1768, →OCLC, page 20

      The stench of the hold while we were on the coast was so intolerably loathsome, that it was dangerous to remain there for any time, and some of us had been permitted to stay on the deck for the fresh air; but now that the whole ship’s cargo were confined together, it became absolutely pestilential.

      1789, Olaudah Equiano, chapter 2, in The Interesting Narrative of the Life of Olaudah Equiano, volume 1, London, pages 78–79

      1941, J. Chapman Miske, “The Thing in the Moonlight” in H. P. Lovecraft, The Tomb and Other Tales, New York: Ballantine, 1970, p. 187, Casting my eyes about, I beheld no living object; but was sensible of a very peculiar stirring far below me, amongst the whispering rushes of the pestilential swamp I had lately quitted.

      Synonyms: pestiferous

    2. Spreading in the manner of pestilence. (of illnesses)

      […] the miseries of famine were succeeded and aggravated by the contagion of a pestilential disease.

      1783, Edward Gibbon, chapter 31, in The History of the Decline and Fall of the Roman Empire, volume 5, London: W. Strahan and T. Cadell, page 292
      1 more example

      A long sicknesse will weary friends at last; but a pestilentiall sicknes auerts them from the beginning.

      1624, John Donne, “5. Meditation”, in Devotions upon Emergent Occasions, London: Thomas Jones, page 95
    3. Caused by pestilence. (of symptoms)

      pestilential fever; pestilential sweating

      1 more example

      The Scab, the Stench, and the Burning are terrible pestilential Symptoms,

      1752, George Berkeley, “An Essay towards Preventing the Ruin of Great-Britain”, in A Miscellany, Containing Several Tracts on Various Subjects, London: J. and R. Tonson and S. Draper, page 40
    4. During which pestilence spreads. (of a period of time)

      They must expect more Pestilential times, That lives in th’ Equinoctial of their Crimes;

      1665, John Quarles, The Citizens Flight with Their Re-call, London, page 4
      1 more example

      Now this pestilentiall Summer being well spent, upon the approach of the Winter, and decrease of the Sicknesse, the King […] drawes nearer to the City of London,

      1651, John Milton, The Life and Reigne of King Charls, London: W. Reybold, page 9
  2. figurativelyHaving a harmful moral effect (especially one that is believed to spread in the manner of pestilence).

    But as the Poisons of the deadliest kind Are to their own unhappy Coasts confin’d, […] So Presby’try and Pestilential Zeal Can only flourish in a Common-weal.

    1687, John Dryden, The Hind and the Panther, 2nd edition, London: Jacob Tonson, Part 1, p. 14
    1 more example

    By proclaiming individuals or entire societies to be damned, by treating their convictions as pestilential heresies, church and state had deliberately loosed fanaticism and savagery on often helpless men.

    1971, George Steiner, In Bluebeard’s Castle: Some Notes toward the Redefinition of Culture, New Haven, CT: Yale University Press, Part 2, p. 47

    Synonyms: pernicious

  3. figurativelyCausing irritation or annoyance.

    1899, Joseph Conrad, Heart of Darkness in Blackwood’s Edinburgh Magazine, Volume 165, March 1899, Chapter 2, p. 480, […] a species of wandering trader—a pestilential fellow, snapping ivory from the natives.

    3 more examples

    There’s the pestilential nuisances who write for autographs […] They’d none of ’em be missed!

    1885, W[illiam] S[chwenck] Gilbert; Arthur Sullivan, composer, […] The Mikado; or, The Town of Titipu, London: Chappel & Co., […], →OCLC, Act I, page 9

    “You are right that Authority must go. It is ridiculous—pestilential, not to be borne—that we should be ruled by an irresponsible dictator in all our essential economy!”

    1966, Robert A. Heinlein, The Moon is a Harsh Mistress, Penguin Random House, published 2018, Book 1, Chapter 2

    these ostensibly pestilential visits from Mumsey

    2003, Lionel Shriver, We Need to Talk about Kevin, London: Serpent’s Tail, published 2006, page 461

    Synonyms: annoying, irritating, pestiferous, pestilent, troublesome, vexatious

Synonyms & antonyms

adjectiveProducing, spreading, promoting or infected with pestilence; causing infection. (of people, animals, places or substances)

adjectiveHaving a harmful moral effect (especially one that is believed to spread in the manner of pestilence).

Similar

adjectiveCausing irritation or annoyance.

More synonyms by meaning

adjectivelikely to spread and cause an epidemic disease

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latinpestilentialis
  2. Englishpestilential

From Latin pestilentialis, from pestilentia.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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