- Lunatic is defined as someone or something that is wild, crazy or absurd.
Wild and crazy behavior is an example of something that would be described as lunatic behavior.
- The definition of a lunatic is a person who is either actually crazy or who is acting crazy and wild in his behavior.
- A crazy person is an example of a lunatic.
- A person who behaves in a really wild and bizarre manner is an example of a lunatic.
- suffering from lunacy; insane
- of or characterized by lunacy
- of or for insane persons
- utterly foolish
Origin of lunaticMiddle English lunatik from Old French lunatique from Late Latin lunaticus, moon-struck, crazy from Classical Latin luna, the moon: see light
an insane person
- A person who is affected by lunacy; a mentally deranged person.
- A very foolish person.
- Affected by lunacy; mentally deranged.
- Of or for people who are mentally deranged.
- Wildly or giddily foolish: a lunatic decision.
Origin of lunaticMiddle English lunatik from Old French lunatique from Latin lūnāticus from lūna moon ( from the belief that madness was influenced by the phases of the moon ); see leuk- in Indo-European roots.
- An insane person.