The meaning of MANIAC is someone who is or acts mentally unsound; especially : a person who behaves in a wildly foolish, reckless, or dangerous manner. How to use maniac in a sentence.

Maniac is a story about friendship, about family - about the connections we have to one another. It's a story about love. And one that we all should hear.

Maniac is an American psychological black comedy drama television miniseries that premiered on Netflix on September 21, 2018, after being announced in 2016.

2 days ago · An alleged road rage maniac was busted weeks after he stabbed a Bronx livery cab driver – as prosecutors revealed the cabbie repeatedly insisted that he did not “want to fight.” Darin ...

1. A psychotic or otherwise mentally ill person who exhibits violent or bizarre behavior. Not used in psychiatric diagnosis. 2. A person who has an excessive enthusiasm or desire for something: a …

maniac noun [C] (PERSON WITH MENTAL ILLNESS) a person who seems unable to control his or her behavior and may commit violent acts: a homicidal maniac (Definition of maniac from the Cambridge …

MANIAC definition: a raving or violently insane person; lunatic. See examples of maniac used in a sentence.

If you describe someone's behavior as maniac, you are emphasizing that it is extremely foolish and uncontrolled.

Dec 7, 2025 · Mania is characterized by high energy, fast talking, lack of sleep, and risky behaviors. It's most common in people with bipolar disorder.

Maniac (from Greek μανιακός, maniakos) is a pejorative for an individual who experiences the mood known as mania. In common usage, it is also an insult for someone involved in reckless behavior.