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Synonyms for irrationality

noun

  1. Irrationality

    absurdity, illogicality, invalidity; see inconsistency.

  2. Senselessness

    unreasonableness, insanity, idiocy; see nonsense 1, 2, stupidity 1, 2.

See irrationality in Webster's New World Roget's A-Z Thesaurus II

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