half demented

demented

[dih-men-tid]
adjective
1.
crazy; insane; mad.
2.
affected with dementia.

Origin:
1635–45; dement + -ed2

dementedly, adverb
dementedness, noun
half-demented, adjective
semidemented, adjective


1. lunatic, crazed, deranged, unbalanced.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
demented (dɪˈmɛntɪd)
 
adj
mad; insane
 
de'mentedly
 
adv
 
de'mentedness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

demented
1640s, from obsolete dement "drive mad."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

demented de·ment·ed (dĭ-měn'tĭd)
adj.

  1. Mentally ill; insane.

  2. Suffering from dementia.

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

demented

adj. Yet another term of disgust used to describe a malfunctioning program. The connotation in this case is that the program works as designed, but the design is bad. Said, for example, of a program that generates large numbers of meaningless error messages, implying that it is on the brink of imminent collapse. Compare wonky, brain-damaged, bozotic.
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