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English definition of “demented”

demented

adjective uk   /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. old-fashioned or informal crazy: The man is demented - he's going to wreck the whole operation.
dementedly
adverb uk   /-li/ us  
(Definition of demented from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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