lunacy noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of lunacy noun from the Oxford Advanced American Dictionary

lunacy

noun

NAmE//ˈlunəsi//

[uncountable]

1behavior that is stupid or crazy synonym madness It's sheer lunacy to drive in this weather.

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2(old-fashioned) mental illness synonym madness

See lunacy in the Oxford Advanced Learner's Dictionary

Check pronunciation: lunacy