non-rational

adjective

Contrary to reason; lacking an appropriate or sufficient reason; irrational.

Meanings

adjectivenon-rational (not comparable)

alternative nonrational

  1. not comparableContrary to reason; lacking an appropriate or sufficient reason; irrational.

    Indeed, the tirade against information in effect serves to justify the constriction of the area of rationality and scientific approach, in order to find room for all kinds of non-rational sources of "knowledge."

    2005, Irfan Habib, “How to Evade Real Issues and Make Room for Obscurantism”, in Social Scientist, vol. 33, no. 9/10, p. 7
  2. not comparableLacking the ability to reason.

    But what of non-rational beings—the animal or infant-man of attuition?

    1898, S. S. Laurie, “The Growth of Mind”, in The School Review, volume 6, number 2, page 83n

    Synonyms: arational, irrational

  3. not comparableoftenhuman sciencesNot within the domain of what can be understood or analyzed by reason; outside the competence of the rules of reason.

    In the total artistic process the two phases—rational and non-rational, planful and inspirational—may be successive or simultaneous.

    1959, Thomas Munro, “Art and Scientific Technology”, in Philosophy and Phenomenological Research, volume 19, number 3, page 400
    2 more examples

    Holton, a Harvard physicist and science historian, introduces us to the two extremist factions he sees attacking science from both sides: the "new Dionysians" who would widen the spectrum of scientific knowledge to include nonrational experience and the "new Apollonians" who would restrict scientific investigation to dealing only with those questions that seem to guarantee rational solution from the outset.

    1974 August 10, John Douglas, “Daedalus on the Challenges to Science”, in Science News, volume 106, number 6, page 92

    Although some nonrational elements may be inconsistent with legal ideals, others—emotions and intuitions of certain types, imagination, judgment, rhetorical persuasiveness (considered below)—are fully consistent with those ideals.

    1996, Paul Gewirtz, “On ‘I Know It When I See It’”, in The Yale Law Journal, volume 105, number 4, page 1036

    Synonyms: arational

  4. not comparablepublic policyeconomicsNot based on one's own interests; inconsistent with utility maximization.
    1 more example

    In the nature of things there must be causes that explain why an industrial enterprise—mill, factory, foundry, dairy, refinery—is located at just this or that place, and not somewhere else. Some of these causes are non-rational, such as accident and caprice. . . . The remaining causes are rational and economic; that is, the selected locality is deemed to offer certain advantages in production or marketing.

    1896, Edward A. Ross, “The Location of Industries”, in The Quarterly Journal of Economics, volume 10, number 3, page 247

Synonyms & antonyms

adjectiveLacking the ability to reason.

adjectiveNot within the domain of what can be understood or analyzed by reason; outside the competence of the rules of reason.

Similar
Also see

Origin

  1. Proto-Indo-European*né
  2. Proto-Germanic*ne
  3. Proto-Indo-European*ís?
  4. Proto-Indo-European*h₁óynos
  5. Proto-Germanic*ainaz
  6. Proto-Germanic*nainaz
  7. Proto-West Germanic*nain
  8. Old Englishnān
  9. Middle Englishnon
  10. Old Englishnān
  11. Old Englishnān-
  12. Middle Englishnon-
  13. Englishnon-
  14. Englishrational
  15. Englishnon-rational

From non- + rational.

Full word history & related roots →

Rhymes & wordplay

Rhymes with non-rational

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Cite this entry
APA

non-rational. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/non-rational

MLA

“non-rational.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/non-rational. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “non-rational,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/non-rational.

Source: non-rational on Wiktionary, CC BY-SA 4.0.