Synonyms of the word 
INSANENESS → INSANITY - LUNACY - MADNESS
insaneness
- n. insanity; madness.
insanity
- n. The state of being insane; madness.
lunacy
- n. (of a person or group of people) The state of being mad, insanity.
- n. Something deeply misguided.
madness
- n. The state of being mad; insanity; mental disease.
- n. rash folly.
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