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ess or derangement of mind; madness; lunacy. All power of fancy overreason is a degree of insanity. Johnson. Without grace The heart's insanity admits no cure. Cowper.

Mental alienation; derangement of the mental faculties; insanity; as, alienation of mind.

A hypochondriacal condition verging upon insanity, occurring in those whose brains have been unduly taxed; -- called also brain fag.

Mental flaw; a touch of craziness; partial insanity; as, he has a crack.

Craziness; insanity.

Dementia; loss of mental powers. See Insanity.

Insanity; madness; esp. that form which consists in weakness or total loss of thought and reason; mental imbecility; idiocy.

tate of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.

Insanity; folly. [Obs.] What tediosity and disensanity Is here among! Beau. & Fl.

impossibilities charged upon it. South. Gloomy fancies which in her amounted to downright insanity. Prescott. -- Down"right`ly, adv. -- Down"right`ness, n.

Violent distraction of mind; violent emotion; excessive grief of anxiety; insanity; madness. [Obs.] That unmatched form and feature of blown youth Blasted with ecstasy. Shak. Our words will but increase his ecstasy. Marlowe.

n. Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity. W. A. Hammond.

oundness or disorded of mind; not sane; mad; deranged in mind; delirious; distracted. See Insanity, 2.

Insanity; madness.

Insanity. [Obs.] Shak.

Insanity or madness; properly, the kind of insanity which is broken by intervals of reason, -- formerly supposed to be influenced by the changes of the moon; any form of unsoundness of mind, except idiocy; mental derangement or alienation. Brande. Burrill. Your kindred shuns your house As beaten hence by your strange l…

The condition of being mad; insanity; lunacy.

Violent derangement of mind; madness; insanity. Cf. Delirium.

Mania; insanity. [Obs.] Chaucer.

A person of congenitally abnormal mind bordering on insanity or degeneracy.