demented

adjective
de·​ment·​ed | \ di-ˈmen-təd How to pronounce demented (audio) \

Definition of demented

1 : mad, insane The advertising campaign for the movie version is trying to sell it as a prankish comedy, with the eccentric aunt who appears from nowhere as a demented Mary Poppins.— Pauline Kael … the violence was instigated directly by Serbian nationalists in Bosnia and in Belgrade as part of their demented project to separate the two intermixed ethnic communities once and for all,— Charles Simic
2 : suffering from or exhibiting cognitive dementia At least one-third of people serving as caregivers for a demented husband or wife become chronically depressed.— Bennett D. Gurian

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Other Words from demented

dementedly adverb
dementedness noun

Synonyms & Antonyms for demented

Synonyms

balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, deranged, fruity [slang], gaga, haywire, insane, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge), moonstruck, non compos mentis, nuts, nutty, psycho, psychotic, scatty [chiefly British], screwy, unbalanced, unhinged, unsound, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]

Antonyms

balanced, compos mentis, sane, sound, uncrazy

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Examples of demented in a Sentence

Many of the patients there were demented. In the movie, he plays a demented man trying to survive on the streets of Los Angeles. Her demented ramblings are a symptom of her illness. He gave me a demented little smile. parents who are almost demented with worry
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Recent Examples on the Web

Hadn’t the rowdy boys cheered louder for my talent, which was whistling like a somewhat demented bird? Mary Grimm, The New Yorker, "Back Then," 17 June 2019 Not because the dresses nodded to a demented Kim Novak or an inscrutable Eva Marie Saint. Nicole Phelps, Vogue, "The Top 10 Collections of the Fall 2019 Season," 8 Mar. 2019 It’s to create a playlist for your future demented self. Eric Zorn, chicagotribune.com, "Music might someday unlock the mind's memories, so make your playlist now," 14 June 2019 Not because the dresses nodded to a demented Kim Novak or an inscrutable Eva Marie Saint. Nicole Phelps, Vogue, "The Top 10 Collections of the Fall 2019 Season," 8 Mar. 2019 Large numbers of demented gun owners experience delusions and hallucinations. Rafil Kroll-zaidi, Harper's magazine, "Findings," 10 Mar. 2019 Not because the dresses nodded to a demented Kim Novak or an inscrutable Eva Marie Saint. Nicole Phelps, Vogue, "The Top 10 Collections of the Fall 2019 Season," 8 Mar. 2019 Not because the dresses nodded to a demented Kim Novak or an inscrutable Eva Marie Saint. Nicole Phelps, Vogue, "The Top 10 Collections of the Fall 2019 Season," 8 Mar. 2019 Not because the dresses nodded to a demented Kim Novak or an inscrutable Eva Marie Saint. Nicole Phelps, Vogue, "The Top 10 Collections of the Fall 2019 Season," 8 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'demented.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of demented

1632, in the meaning defined at sense 1

History and Etymology for demented

see dementia

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Statistics for demented

Last Updated

13 Jul 2019

Look-up Popularity

Time Traveler for demented

The first known use of demented was in 1632

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More Definitions for demented

demented

adjective

English Language Learners Definition of demented

: not able to think clearly or to understand what is real and what is not real : crazy or insane

demented

adjective
de·​ment·​ed | \ di-ˈmen-təd How to pronounce demented (audio) \

Kids Definition of demented

demented

adjective
de·​ment·​ed | \ di-ˈment-əd How to pronounce demented (audio) \

Medical Definition of demented

: suffering from or exhibiting cognitive dementia

Other Words from demented

dementedly adverb
dementedness noun

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More from Merriam-Webster on demented

Rhyming Dictionary: Words that rhyme with demented

Thesaurus: All synonyms and antonyms for demented

Spanish Central: Translation of demented

Nglish: Translation of demented for Spanish Speakers

Britannica English: Translation of demented for Arabic Speakers

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