- foolish - devoid of good sense or judgment; "foolish remarks"; "a foolish decision"
Antonyms: wise, all-knowing, omniscient, owlish, sage, sapiential, perspicacious, sagacious, sapient
- anserine, dopy, dopey, foolish, goosey, goosy, gooselike - having or revealing stupidity; "ridiculous anserine behavior"; "a dopey answer"; "a dopey kid"; "some fool idea about rewriting authors' books"
Antonym: smart (indirect, via stupid)