madness

disordered reason, disordered intellect; diseased mind, unsound mind, abnormal mind; derangement, unsoundness., insanity, lunacy; madness; mania, rabies, furor, mental alienation, aberration; paranoia; dementation, dementia, demency; phrenitis, phrensy, frenzy, raving, incoherence, wandering, delirium, calenture of the brain; delusion, hallucination; lycanthropy; brainstorm., vertigo, dizziness, swimming; sunstroke, coup de soleil, siriasis., fanaticism, infatuation, craze; oddity, eccentricity, twist, monomania; kleptodipsomania; hypochondriassis (low spirits); melancholia, hysteria; amentia., screw loose, tile loose, slate loose; bee in one's bonnet, rats in the upper story., dotage (imbecility).

derangement; disorder; evection, discomposure, disturbance; disorganization, deorganization; dislocation; perturbation, interruption; shufflng; inversion; corrugation (fold); involvement.

want of intelligence, want of intellect [more]; shadowness, silliness, foolishness; imbecility, incapacity, vacancy of mind, poverty of intellect, clouded perception, poor head, apartments to let; stupidity, stolidity; hebetude, dull understanding, meanest capacity, shortsightedness; incompetence (unskillfulness)., one's weak side; bias; infatuation (insanity)., simplicity, puerility, babyhood; dotage, anility, second childishness, fatuity; idiocy, idiotism; driveling., folly, frivolity, irrationality, trifling, ineptitude, nugacity, inconsistency, lip wisdom, conceit; sophistry; giddiness (inattention); eccentricity; extravagance (absurdity); rashness., act of folly., be imbecile; have no brains, have no sense [more]., trifle, drivel, radoter, dote; ramble (madness); play the fool, play the monkey; take leave of one's senses; not see an inch beyond one's nose; stultify oneself; talk nonsense.