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

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.

Insane (disambiguation) Look up insane in Wiktionary, the free dictionary. Insane behavior, or insanity, is characterized by abnormal mental or behavioral patterns. Insane may also refer to:

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

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

WordReference Random House Unabridged Dictionary of American English © 2025 in•sane (in sān′), adj. not sane; not of sound mind; mentally deranged. of, pertaining to, or characteristic …

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

If you describe a decision or action as insane, you think it is very foolish or excessive.

It denotes a state of mind that is far removed from normality, characterized by a lack of reason, coherence, or control. When applied to a person, it suggests a severe disturbance in their …