Foolish(a.) Marked with, or exhibiting, folly; void of understanding; weak in intellect; without judgment or discretion; silly; unwise.
Foolish(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.
Foolish(a.) Absurd; ridiculous; despicable; contemptible.
Foolishly(adv.) In a foolish manner.
Foolishness(n.) The quality of being foolish.
Foolishness(n.) A foolish practice; an absurdity.

Words within foolisher