The meaning of INSANE is exhibiting a severely disordered state of mind. How to use insane in a sentence.

Insanity, madness, lunacy, and craziness are behaviors caused by certain abnormal mental or behavioral patterns. Insanity can manifest as violations of societal norms, including a person …

INSANE definition: 1. very annoyed, angry, upset, or excited, often so that you cannot think or behave normally: 2…. Learn more.

Insane definition: (not in technical use as a medical diagnosis) not sane; not of sound mind; mentally deranged.. See examples of INSANE used in a sentence.

Define insane. insane synonyms, insane pronunciation, insane translation, English dictionary definition of insane. afflicted with mental derangement, having a disordered mind, mad: Her …

Oct 8, 2025 · (slang) Extremely good; incredibly amazing. quotations That guy is insane at FPS games.

insane, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

To be insane is to have a seriously disordered state of mind. This is also a slang word for acting wacky or wild.

insane (informal) having a mind that does not work normally: If I have to stay any longer, I'll go insane. Insane is also used as a legal term for someone who is not responsible for a crime …

Someone who is insane has a mind that does not work in a normal way, with the result that their behaviour is very strange.