Synonyms and related words :
balmy, bananas, barmy, bats, batty, beany, bedazzled, bonkers, buggy, bughouse, bugs, crackers, cuckoo, daffy, dazed, dazzled, dippy, dopey, dotty, flaky, flipped, freaked-out, fruitcakey, fruity, gaga, goofy, groggy, haywire, in a daze, just plain nuts, knocked silly, kooky, loony, loopy, mazed, nuts, nutty, off the hinges, off the track, off the wall, potty, punch-drunk, punchy, round the bend, screwball, screwballs, screwy, silly, wacky, woozy