surd

adjective

Definition of surdnext
as in irrational

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Example Sentences

Recent Examples of Synonyms for surd
  1. irrational
  2. illogical
  3. nonrational
  4. unreasoning
  5. fallacious
  6. unreasonable
  7. imbecile
  8. thoughtless
Adjective
  • So the strongest performers tend to resist hardest, and their response is not irrational.
    — Pankaj Prasoon, Forbes.com, 2 Sep. 2026
  • But the question remained unsolved for polygons with irrational angles.
    — Sam Macdonald, Scientific American, 14 Aug. 2026
Definition of irrational
Adjective
  • One day, during my visit, Cole used a step stool to access a small cubbyhole in a high corner of a bedroom wall—a sort of illogical nook that seemed preordained to house some private, upsetting object.
    — Laura Preston, New Yorker, 30 Aug. 2026
  • Lambasting Lambert for the performance is illogical, but so is placing so much importance on one player.
    — Chandler Rome, New York Times, 21 Aug. 2026
Definition of illogical
Adjective
  • Mid-century collective behavior theories considered social movements to be nonrational, spontaneous events occurring during moments of social and cultural breakdown.
    — The Editors, JSTOR Daily, 10 Sep. 2025
Definition of nonrational
Adjective
  • But in each event—in the living act, the undoubted deed—there, some unknown but still reasoning thing puts forth the mouldings of its features from behind the unreasoning mask.
    — Literary Hub, Literary Hub, 6 July 2026
  • Roosevelt surely understood that nameless, unreasoning, unjustified fear cannot be eradicated.
    — New York Times, New York Times, 9 June 2026
Definition of unreasoning
Adjective
  • Defenders of Israel believe that designation is fallacious and dangerous.
    — Gary Baum, HollywoodReporter, 13 July 2026
  • There is a widespread but fallacious perception that India's tariffs are inordinately high.
    — Mohan Kumar, MSNBC Newsweek, 31 Aug. 2025
Definition of fallacious
Adjective
  • The imposition of the tariffs stemmed from a breakdown in negotiations between the two countries in August, with each claiming the other side had unreasonable requests that would be detrimental to their respective country’s workers.
    — Washington Examiner Staff, The Washington Examiner, 8 Sep. 2026
  • Drop one task that doesn’t need to happen today, and ask for clarification if a deadline feels unreasonable.
    — Tarot.com, Baltimore Sun, 7 Sep. 2026
Definition of unreasonable
Adjective
  • Prep school was one such imbecile society.
    — Jessica Winter, New Yorker, 7 May 2026
Definition of imbecile
Adjective
  • At the outset of this chatty novel, the protagonist, Caroline, who was recently ghosted by a thoughtless man, has had a story published in this magazine.
    — The New Yorker, New Yorker, 10 Aug. 2026
  • That self-deprecating description opens Tony, writer-director Matt Johnson’s movie about the one crazy summer that changed a thoughtless young lout’s life; for good measure, the quote does double duty as the tagline on the film’s poster.
    — David Fear, Rolling Stone, 5 Aug. 2026
Definition of thoughtless
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

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surcoats
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“Surd.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/surd. Accessed 14 Sep. 2026.

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