Adjacent Words

demented definitions

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WordNet (r) 3.0 (2005)

adj
1: affected with madness or insanity; "a man who had gone mad" [syn: brainsick, crazy, demented, disturbed, mad, sick, unbalanced, unhinged]

Merriam Webster's

adjective Date: 1632 1. mad, insane 2. suffering from or exhibiting cognitive dementia • dementedly adverb • dementedness noun

Oxford Reference Dictionary

adj. mad; crazy. Derivatives: dementedly adv. dementedness n. Etymology: past part. of dement verb f. OF dementer or f. LL dementare f. demens out of one's mind (as DE-, mens mentis mind)

Webster's 1913 Dictionary

Demented De*ment"ed, a. [From Dement.] Insane; mad; of unsound mind. -- De*ment"ed*ness, n.

Collin's Cobuild Dictionary

1. Someone who is demented has a severe mental illness, especially Alzheimer's disease. (MEDICAL or OLD-FASHIONED) ADJ 2. If you describe someone as demented, you think that their actions are strange, foolish, or uncontrolled. (INFORMAL) Sid broke into demented laughter. = crazy ADJ [disapproval]

Soule's Dictionary of English Synonyms

a. Idiotic, foolish, infatuated, insane, crazy, crack-brained, daft, deranged.

Moby Thesaurus

abnormal, bereft of reason, brainsick, crackbrained, cracked, crazed, crazy, daft, delirious, deluded, deprived of reason, deranged, disoriented, distraught, flighty, frenzied, hallucinated, hysterical, insane, irrational, loco, lunatic, mad, maddened, maniac, manic, mazed, mental, mentally deficient, meshuggah, moon-struck, non compos, non compos mentis, not all there, not right, odd, of unsound mind, off, psycho, queer, reasonless, senseless, sick, stark-mad, stark-staring mad, strange, tetched, touched, unbalanced, unhinged, unsane, unsettled, unsound, wandering, witless