THESAURUS
goofy
apish, asinine, balmy, bananas, barmy, bats, batty, beany, befooled, beguiled, besotted, bonkers, brainless, buffoonish, buggy, bughouse, bugs, cockeyed, crackers, crazy, credulous, cuckoo, daffy, daft, dazed, dippy, dizzy, doting, dotty, dumb, fatuitous, fatuous, flaky, flipped, fond, fool, foolheaded, foolish, freaked-out, fruitcakey, fruity, fuddled, futile, gaga, gulled, haywire, idiotic, imbecile, inane, inept, infatuated, insane, just plain nuts, kooky, loony, loopy, mad, maudlin, moronic, nuts, nutty, off the hinges, off the track, off the wall, potty, round the bend, sappy, screwball, screwballs, screwy, senseless, sentimental, silly, slaphappy, stupid, thoughtless, wacky, wet, witless