insanity

[in-san-i-tee] / ɪnˈsæn ɪ ti /

NOUN

mental illness; foolishness

Synonyms

STRONGEST

absurdity alienation craziness folly frenzy hysteria irresponsibility lunacy madness mental disorder

STRONG

aberration delirium delusion derangement distraction hallucination irrationality mania neurosis phobia psychopathy psychosis senselessness unbalance

WEAK

preposterousness unreasonableness witlessness

Antonyms

STRONG

balance certainty fact reality truth

WEAK

sanity soundness wellness

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Jonah was glad that Chip could still show some sense of humor, that he hadn’t totally crossed the line into insanity.

From Literature

That flying blob of insanity isn’t for everyone.

From The Wall Street Journal

“I don’t get where all this insanity is coming from.”

From MarketWatch

“I think it would be cataclysmic in many ways. It would be economic, financial, and therefore political insanity,” he said.

From Barron's