The meaning of DEMENTED is exhibiting madness : marked by thought or action that lacks reason —not used technically. How to use demented in a sentence.

DEMENTED definition: 1. unable to think or act clearly because you are extremely worried, angry, or excited by…. Learn more.

DEMENTED definition: crazy; insane; mad. See examples of demented used in a sentence.

Define demented. demented synonyms, demented pronunciation, demented translation, English dictionary definition of demented. adj. 1. Suffering from dementia. 2. Informal Crazy or foolish. …

Definition of demented adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you describe someone as demented, you think that their actions are strange, foolish, or uncontrolled.

demented, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary