reason

Definitions

A cause, explanation, or justification for an action or event.

The power of the mind to think, understand, and form judgments by a process of logic.

To think, understand, and form judgments by a process of logic.

Examples

There is no reason to be afraid of the dark.

She explained the reason for her sudden departure.

I have every reason to believe that he is telling the truth.

Synonyms

logic rationale ground motive cause basis justification

Antonyms

emotion impulse irrationality folly nonsense instinct absurdity