insanity Definition and Meaning in English (insanity definition)

noun

Synonyms:madness lunacy derangement

Quick Answer • Definition

Insanity definition: The state of being seriously mentally ill; madness.

Definitions of Insanity

1noun
The state of being seriously mentally ill; madness.
2noun
Extreme foolishness or irrationality.

Example Sentences

formal

“The court declared him not guilty by reason of insanity.”

casual

“It would be sheer insanity to try and cross the river in this storm.”

casual

“His sudden outburst was a moment of pure insanity.”

Synonyms

madness lunacy derangement folly

Antonyms

sanity reasonsoundness of mind

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Inflected Word Forms

adjectiveinsane

adverbinsanely

Phrases & Idiomatic Expressions

legal insanitycollocation

A legal term referring to a mental state that prevents a person from being held responsible for their actions.

Frequently Asked Questions: Insanity in English

What is the meaning of Insanity in English?▼

Insanity definition: The state of being seriously mentally ill; madness.

How do you translate 'Insanity' to English?▼

'Insanity' translates to 'insanity' in English. Insanity definition: The state of being seriously mentally ill; madness.

How do you pronounce 'Insanity' and 'insanity'?▼

Listen to clear English audio pronunciation of 'Insanity' and native English audio speech for 'insanity' with bilingual sentence examples on DictBridge.

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