Definition of Lunatic
Lunatic
lu·nat·ic
Definition/Meaning
(noun)
A person who is mentally ill or unstable, often in a wild or violent way.
e.g. The lunatic driver sped down the highway, weaving in and out of lanes.
(adjective)
in old usage, crazy or insane and affected with a mental illness, or designated for the care of such people;
e.g. The house is occupied by a lunatic old man who lives alone.
(adjective)
wildly eccentric or extremely foolish;
e.g. She made the lunatic decision to go on her own despite the danger inherent in her plan.
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