- (no longer in technical use; now considered offensive) an insane person.
- a person whose actions and manner are marked by extreme eccentricity or recklessness.
- a person legally declared to be of unsound mind and who therefore is not held capable or responsible before the law: a former legal term.
- (no longer in technical use; now considered offensive) insane.
- characteristic or suggestive of lunacy; wildly or recklessly foolish.
- designated for or used by the insane: a lunatic asylum.
- gaily or lightheartedly mad, frivolous, eccentric, etc.: She has a lunatic charm that is quite engaging.
- an archaic word for insane
- foolish; eccentric; crazy
- a person who is insane
