Definition, Meaning & Synonyms
demented
Adjective
/dɪˈmɛn.tɪd/

Definition
Affected by dementia or insanity.

Examples
- After the accident, he became demented and could not recognize his own family.
- Her demented laughter echoed through the empty halls.

Meaning
Demented describes someone who is mentally ill or someone who is acting irrationally because of their mental state.

Synonyms
- insane
- mad
- crazy
- deranged