Definition, Meaning & Synonyms

maniac

noun

/ˈmeɪniæk/

Definition

A person who exhibits extreme and uncontrolled behavior, often associated with a specific obsession or a mental illness.

Examples

He was a maniac when it came to collecting stamps, dedicating all his free time to his hobby.
In the movie, the antagonist is portrayed as a maniac who causes chaos wherever he goes.
Her maniac energy at the party kept everyone entertained and on their toes.

Meaning

The term is often used to describe someone with excessive enthusiasm or an extreme level of activity in a particular area, but can also refer to someone experiencing severe mental instability.