not all there

78 Moby Thesaurus words for "not all there":
      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