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demented

[dih-men-tid] /dɪˈmɛn tɪd/
adjective
1.
crazy; insane; mad.
2.
affected with dementia.
Origin of demented
1635-1645
First recorded in 1635-45; dement + -ed2
Related forms
dementedly, adverb
dementedness, noun
half-demented, adjective
semidemented, adjective
Synonyms
1. lunatic, crazed, deranged, unbalanced.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for dementedly

demented

/dɪˈmɛntɪd/
adjective
1.
mad; insane
Derived Forms
dementedly, adverb
dementedness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for dementedly

demented

adj.

1640s, from obsolete dement "drive mad."

Online Etymology Dictionary, © 2010 Douglas Harper
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dementedly in Medicine

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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