unreason.
Lack of reason or rationality; unreasonableness; irrationality.
Meaning & usage
Lack of reason or rationality; unreasonableness; irrationality.
Nonsense; folly; absurdity.
Where this word comes from
From Middle English unreson; equivalent to un- + reason.
To prove to be unreasonable; disprove by argument.
To apply false logic or think without logic.
To make unreasonable; to deprive of reason.
Where this word comes from
From Middle English unreson; equivalent to un- + reason.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.