arational

A1R1A1T1I1O1N1A1L1
UK/eɪˈɹaʃ(ə)nəl/

adjective

Not within the domain of what can be understood or analyzed by reason; not rational, outside the competence of the rules of reason.

First used 20th c.Scrabble 9

Meanings

adjectivearational (comparative more arational, superlative most arational)

comparative more arational · superlative most arational

  1. human sciencesNot within the domain of what can be understood or analyzed by reason; not rational, outside the competence of the rules of reason.First known use 20th c.

    On the first view, emotions are purely biological phenomena. . . . They are arational and amoral, like other natural bodily functions.

    2001, Ronald De Sousa, “Moral Emotions,”, in Ethical Theory and Moral Practice, volume 4, number 2, page 109
    3 more examples

    If the end-product of a man's philosophizing about the nature of the cosmos is the ultimate, arational matter, this will affect his moral opinion of the cosmos.

    1938, Marten Ten Hoor, “The Philistines over Philosophy,”, in The Journal of Philosophy, volume 35, number 20, page 542

    Scientific knowledge is conceptual, rational, and testable. Mystical knowledge is usually aconceptual, arational, and does not lend itself to interpersonal testing.

    1974, Ervin Laszlo, “Why Should I Believe in Science?”, in Philosophy and Phenomenological Research, volume 34, number 4, page 484

    Regarded with the objectivity of hindsight, the illusion appears arational, almost fantastic: it would be like being able both to lie and to trust other people at the same time.

    1996, David Foster Wallace, Infinite Jest […], Boston, Mass.; New York, N.Y.: Little, Brown and Company, →ISBN, page 146

    Synonyms: non-rational

Synonyms & antonyms

adjectiveNot within the domain of what can be understood or analyzed by reason; not rational, outside the competence of the rules of reason.

Also see

Origin

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekἀ- (a-)
  5. Englisha-
  6. Englishrational
  7. Englisharational

From a- + rational.

Full word history & related roots →

Translations

Portuguese arracional
  • arracionalthat cannot be understood or analysed by reason

Rhymes & wordplay

Rhymes with arational

All rhymes →
Cite this entry
APA

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

MLA

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

Chicago

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

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