Synonyms of craziness

Noun

1. craziness, daftness, flakiness, insanity

usage: informal terms for insanity

2. folly, foolishness, craziness, madness, stupidity

usage: the quality of being rash and foolish; "trying to drive through a blizzard is the height of folly"; "adjusting to an insane society is total foolishness"

3. folly, foolery, tomfoolery, craziness, lunacy, indulgence, play, frolic, romp, gambol, caper

usage: foolish or senseless behavior