foolish
Translation
silly, unwise, stupid
Examples
That was a foolish thing to do.
That was a silly thing to do.
He made a foolish investment.
He made an unwise investment.
Grammar Patterns
a foolish ((noun)) a foolish (noun) It was a foolish decision.
It is foolish ((to-inf)) It is foolish to (do sth.) It is foolish to argue with him.
Similar Words
Synonyms: silly, unwise, stupid; Antonyms: wise, sensible
Etymology
From the noun 'fool' plus the adjective-forming suffix '-ish' (like, characteristic of).
Memory Tips
Remember that something a 'fool' would do is 'foolish'.