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English definition of “demented”

demented

adjective     /dɪˈmen.tɪd/ US  /-t̬ɪd/
unable to think or act clearly because you are extremely worried, angry, or excited by something: She was nearly demented with worry when her son didn't come home.Becoming too excited and easily upsetAnxious and worried old-fashioned or informal crazy: The man is demented - he's going to wreck the whole operation.Of unsound mindStupid and silly dementedly     /-li/ adverb Of unsound mindStupid and silly
(Definition of demented adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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