May 21, 2026 · foolish implies the character of being or seeming unable to use judgment, discretion, or good sense.

FOOLISH definition: resulting from or showing a lack of sense; ill-considered: unwise. See examples of foolish used in a sentence.

Definition of foolish adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

It would be foolish to give up your job when you haven't got any other source of income. I was foolish to buy such an expensive piece of equipment without checking that we really needed it.

Define foolish. foolish synonyms, foolish pronunciation, foolish translation, English dictionary definition of foolish. adj. 1. Lacking or exhibiting a lack of good sense or judgment; silly: a foolish boy; a foolish …

What does the word foolish mean? There are seven meanings listed in OED's entry for the word foolish, two of which are labelled obsolete, and one of which is considered offensive.

fool′ish•ly, adv. fool′ish•ness, n. 1. 2. senseless, vacant, vapid, simple, witless. Foolish, fatuous, silly, inane, stupid, asinine imply weakness of intellect and lack of judgment.

Apr 27, 2026 · Adjective foolish (comparative more foolish, superlative most foolish) (of a person) Lacking good sense or judgement as a general trait; unwise; stupid.

If someone's behavior or action is foolish, it is not sensible and shows a lack of good judgment. It would be foolish to raise hopes unnecessarily.

Foolish can be generally defined as lacking good sense, judgment, or wisdom. It refers to behavior or actions that are imprudent, reckless, or lacking in logical reasoning.