List of not all there synonyms and not all there related words.
abnormal, arrested, babbling, backward, bereft of reason, blithering, brainsick, burbling, crackbrained, cracked, crazed, crazy, cretinistic, cretinous, daft, deluded, demented, deprived of reason, deranged, disoriented, distraught, dithering, driveling, drooling, flighty, half-baked, half-witted, hallucinated, idiotic, imbecile, imbecilic, insane, irrational, loco, lunatic, mad, maddened, manic, maundering, mazed, mental, mentally defective, mentally deficient, mentally handicapped, mentally retarded, meshuggah, mongoloid, moon-struck, moronic, non compos, non compos mentis, not right, odd, of unsound mind, off, psycho, queer, reasonless, retarded, senseless, sick, simple, simpleminded, simpletonian, slobbering, stark-mad, stark-staring mad, strange, subnormal, tetched, touched, unbalanced, unhinged, unsane, unsettled, unsound, wandering, witless