30 results for: Lunacy

Dictionary Entries (8 more entries. View all »)

lu·na·cy

Audio Help [loo-nuh-see] Pronunciation Key

–noun, plural -cies.

1.	insanity; mental disorder.

2.	intermittent insanity, formerly believed to be related to phases of the moon.

3.	extreme foolishness or an instance of it: Her decision to resign was sheer lunacy.

4.	Law. unsoundness of mind sufficient to incapacitate one for civil transactions.

[Origin: 1535–45; lun(atic) + -acy

]

—Synonyms 1. derangement, dementia; craziness, madness, mania, aberration. 3. folly, stupidity.

—Antonyms 1, 2. rationality, sanity.

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Thesaurus Entries

	Synonym Collection v1.1	Cite This Source
Main Entry:	lunacy
Part of Speech:	noun
Synonyms:	absurdity, craziness, derangement, folly, foolishness, idiocy, insanity, madness, mania, silliness, ineptitude, stupidity
Source:	Synonym Collection v1.1 Copyright © 2008 by Lexico Publishing Group, LLC.

	Roget's II: The New Thesaurus	Cite This Source
Main Entry:	foolishness
Part of Speech:	noun
Definition:	Foolish behavior.
Synonyms:	absurdity, folly, foolery, idiocy, imbecility, insanity, madness, nonsense, preposterousness, senselessness, silliness, tomfoolery, zaniness
Source:	Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

	Roget's II: The New Thesaurus	Cite This Source
Main Entry:	insanity
Part of Speech:	noun
Definition:	Serious mental illness or disorder impairing a person's capacity to function normally and safely.
Synonyms:	brainsickness, craziness, dementia, derangement, disturbance, insaneness, madness, mental illness, psychopathy, unbalance
Source:	Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Encyclopedia Articles (17 more entries. View all »)

lunacy: see insanity.

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