irrationality

English

Etymology

From irrational +‎ -ity. May also be analyzed as ir- +‎ rationality.

Pronunciation

• (US) IPA^(key): /ɪˌɹæʃ.əˈnæl.ə.ti/, /ɪˌɹæʃ.ɪˈnæl.ɪ.ti/, /əˌɹæʃ.əˈnæl.ə.ti/

• Audio (General American):

  (file)

• Rhymes: -ælɪti

Noun

irrationality (countable and uncountable, plural irrationalities)

1. (uncountable) The quality or state of being irrational.
   1. The state of being illogical or absurd.

      Synonyms: absurdity, illogicality, fallaciousness

   2. (mathematics) The property of being an irrational number.
   3. The state of being incapable of reason or abstract thought.

      Synonyms: unreason, mindlessness

      • 1905, Leo Tolstoy, The Complete Works of Count Tolstoy, page 523:

        Man introduces reason into the world of Nature, destroying irrational struggle and waste. But this activity is outside of self, distant, only reflected. Man sees this irrationality only with his intellect.

2. (countable) Something that is irrational; the result of an illogical or absurd thought or action.

   Synonym: absurdity

Antonyms

• rationality

Translations

state of being illogical

state of being an irrational number

state of being incapable of reason

something that is irrational

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• Bulgarian: неразумност f (nerazumnost), безразсъдство n (bezrazsǎdstvo)
• Chinese:

  Mandarin: 不合理 (zh) (bùhélǐ)

• Dutch: onredelijkheid (nl)
• Finnish: järjettömyys (fi)
• French: irrationalité (fr)
• Galician: irracionalidade (gl) f
• German: Unvernunft (de), Irrationalität (de) f
• Greek:

  Ancient: ἀλογία f (alogía)

• Italian: irrazionalità (it), irragionevolezza (it)
• Japanese: 不合理 (ja) (fugōri), 無理 (ja) (muri), 筋違い (ja) (sujichigai)
• Kazakh: иррационалдық (irrasionaldyq)
• Polish: bezrozum m, bezrozumność (pl) f
• Portuguese: irracionalidade (pt)
• Spanish: irracionalidad (es)
• Swedish: irrationalitet (sv) c
• Tagalog: kaatbangan

References

• “irrationality”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• “irrationality”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.