Topic Thesaurus
Roget's Thesaurus

Insanity

Nouns
  • disordered reason, disordered intellect
  • diseased mind, unsound mind, abnormal mind
  • derangement, unsoundness
  • psychosis
  • neurosis
  • cognitive disorder
  • affective disorder. insanity, lunacy
  • madness etc. adj.
  • mania, rabies, furor, mental alienation, aberration
  • paranoia, schizophrenia
  • dementation, dementia, demency
  • phrenitis, phrensy, frenzy, raving, incoherence, wandering, delirium, calenture of the brain
  • delusion, hallucination
  • lycanthropy
  • brain storm. vertigo, dizziness, swimming
  • sunstroke, siriasis. fanaticism, infatuation, craze
  • oddity, eccentricity, twist, monomania (caprice) Caprice
  • kleptodipsomania
  • hypochondriasis [Med.] etc. (low spirits) Dejection
  • melancholia, depression, clinical depression, severe depression
  • hysteria
  • amentia. screw loose, tile loose, slate loose
  • bee in one's bonnet, rats in the upper story. dotage etc. (imbecility) Imbecility. Folly.
Verbs
  • be insane etc. adj.. become insane etc. adj.
  • lose one's senses, lose one's reason, lose one's faculties, lose one's wits
  • go mad, run mad, lose one's marbles [Coll.], go crazy, go bonkers [Coll.], flip one's wig [Coll.], flip one's lid [Coll.], flip out [Coll.], flip one's bush [Coll.]. rave, dote, ramble, wander
  • drivel etc. (be imbecile) Imbecility. Folly
  • have a screw loose etc. n., have a devil
  • lose one's head etc. (be uncertain) Uncertainty. render mad, drive mad etc. adj.
  • madden, dementate, addle the wits, addle the brain, derange the head, infatuate, befool
  • turn the brain, turn one's head
  • drive one nuts [Coll.].
Adjectives
  • insane, mad, lunatic, loony [Coll.]
  • crazy, crazed, aliene, non compos mentis
  • not right, cracked, touched
  • bereft of reason
  • all possessed, unhinged, unsettled in one's mind
  • insensate, reasonless, beside oneself, demented, daft
  • phrenzied, frenzied, frenetic
  • possessed, possessed with a devil
  • deranged, maddened, moonstruck
  • shatterpated
  • mad-brained, scatter brained, shatter brained, crackbrained
  • touched, tetched [Coll.]
  • off one's head. [behavior suggesting insanity] maniacal
  • delirious, lightheaded, incoherent, rambling, doting, wandering
  • frantic, raving, stark staring mad, stark raving mad, wild-eyed, berserk
  • delusional, hallucinatory. [behavior somewhat resembling insanity] corybantic, dithyrambic
  • rabid, giddy, vertiginous, wild
  • haggard, mazed
  • flighty
  • distracted, distraught
  • depressed
  • agitated, hyped up
  • bewildered etc. (uncertain) Uncertainty. mad as a March hare, mad as a hatter
  • of unsound mind etc. n.
  • touched in one's head, wrong in one's head, not right in one's head, not in one's right mind, not right in one's wits, upper story
  • out of one's mind, out of one's wits, out of one's skull [Coll.], far gone, out of one's senses, out of one's wits
  • not in one's right mind. fanatical, infatuated, odd, eccentric
  • hypped, hyppish
  • spaced out [Coll.]. imbecile, silly, c. Imbecility. Folly.
Adverbs
  • like one possessed.
Phrases
  • the mind having lost its balance
  • the reason under a cloud