in sanest

insane

[in-seyn]
adjective
1.
not sane; not of sound mind; mentally deranged.
2.
of, pertaining to, or characteristic of a person who is mentally deranged: insane actions; an insane asylum.
3.
utterly senseless: an insane plan.

Origin:
1550–60; < Latin insānus. See in-3, sane

insanely, adverb
insaneness, noun
pseudoinsane, adjective


1. demented; lunatic, crazed, crazy; maniacal. 3. foolish, irrational. See mad.
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World English Dictionary
insane (ɪnˈseɪn)
 
adj
1.  a.  mentally deranged; crazy; of unsound mind
 b.  (as collective noun; preceded by the): the insane
2.  characteristic of a person of unsound mind: an insane stare
3.  irresponsible; very foolish; stupid
 
in'sanely
 
adv
 
in'saneness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

insane
1560, from L. insanus "mad, insane, outrageous, excessive, extravagant," from in- "not" + sanus (see sane). Originally only of persons; of actions, from 1842. Cf. lunatic; and It. pazzo "insane," originally a euphemism, from L. patiens "suffering."
Ger. verrückt, lit. pp. of verrücken "to displace," "applied to the brain as to a clock that is 'out of order' " [Buck].
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

insane in·sane (ĭn-sān')
adj.
Of, exhibiting, or afflicted with insanity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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