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.

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

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

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

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 of a person …

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

insane meaning, definition, what is insane: completely stupid or crazy, often in a w...: Learn more.

The term "insane" emphasizes the presence of abnormality or madness, highlighting a departure from the ordinary and introducing an element of chaos, instability, or unpredictability.