what is a synonym for mad
2 having or showing a very abnormal or sick state of mind the man who thinks he's been turned into a bug is clearly mad Synonyms balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, demented, deranged, ...