Definition of foolish

• a. - Marked with, or exhibiting, folly; void of understanding; weak in intellect; without judgment or discretion; silly; unwise.
• a. - Such as a fool would do; proceeding from weakness of mind or silliness; exhibiting a want of judgment or discretion; as, a foolish act.
• a. - Absurd; ridiculous; despicable; contemptible.