Word.ws English Dictionary

Synonyms of irrationality

5 similar words · 1 opposite word

Another word for irrationality is unreason. Other synonyms of irrationality are absurdity, illogicality, fallaciousness and mindlessness. The opposite of irrationality is rationality.

Synonyms and similar words for irrationality

nounThe state of being illogical or absurd.

nounThe state of being incapable of reason or abstract thought.

  • unreasonLack of reason or rationality; unreasonableness; irrationality.
  • mindlessnessThe property of being mindless.

Opposite of irrationality

nounMore antonyms

Meaning of irrationality

  1. noun The state of being illogical or absurd.
  2. noun The property of being an irrational number.
  3. noun The state of being incapable of reason or abstract thought.

Full definition of irrationality

irrationality in other languages

Questions about synonyms of irrationality

What is another word for irrationality?
Irrationality has 5 synonyms on Word.ws, such as unreason, absurdity, illogicality, fallaciousness and mindlessness.
What is the opposite of irrationality?
The opposite of irrationality is rationality.
What does irrationality mean?
Irrationality means the state of being illogical or absurd.

Source and license

Adapted from Wiktionary: irrationality (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of irrationality.” Word.ws, https://word.ws/synonyms/irrationality. Based on Wiktionary, CC BY-SA 4.0.