Synonyms For "Insane" :
1 syllable:
bats, cracked, crazed, daft, fey, kookie, mad, nuts, sick, touched, wild
2 syllables:
balmy, barmy, batty, bonkers, brainsick, buggy, crackbrained, crackers, crazy, deranged, disturbed, dotty, foolish, fruity, harebrained, kooky, loco, loony, loopy, moonstruck, nutty, screwy, unhinged, unsound, wacky, whacky
3 syllables:
certified, demented, haywire, lunatic, maniac, maniclike, paranoid, psychotic, raving mad, unbalanced, unstable
4 syllables:
hebephrenic, idiotic, irrational, maniacal, psychopathic, schizophrenic, unreasonable