unreason

English dictionary entry

Meanings

noun
  1. Lack of reason or rationality; unreasonableness; irrationality.
  2. Nonsense; folly; absurdity.
verb
  1. To prove to be unreasonable; disprove by argument.
  2. To apply false logic or think without logic.
  3. To make unreasonable; to deprive of reason.

Word forms

unreason unreasons unreasoning unreasoned

Etymology

From Middle English unreson; equivalent to un- + reason.

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