Find Synonyms

lunacy Synonyms

Another word for lunacy

Choosing another word for lunacy depends on context, so the 14 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

Extreme folly, recklessness, or wildly irrational behavior.

Usage Example

"Attempting to climb the mountain during a severe winter storm was sheer folly."

Strongest
folly
madness
insanity
Strong
absurdity
idiocy
foolishness
stupidity
craziness
irrationality
recklessness

• noun (Context 2)

The state of being severely mentally ill or insane (now archaic in medical and legal usage, originally referring to intermittent madness believed to be caused by phases of the moon).

Usage Example

"Nineteenth-century legal statutes often contained specific provisions regarding the property of individuals diagnosed with insanity."

Strongest
insanity
madness
derangement
Strong
dementia
mania
psychosis

Opposites of lunacy

The opposite of lunacy shifts depending on context. Common opposites include:

sanity
wisdom
prudence
common sense
reason
lucidity
rationality
soundness
See all opposites of lunacy

• Nearby Words

lumpsucker
lumpy
luna
lunacy
lunar
lunaria
lunatic

Cite this Entry

Wordmom. (2026). Synonyms for Lunacy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/lunacy
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