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merriam-webster.com
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INSANE Definition & Meaning - Merriam-Webster
The meaning of INSANE is exhibiting a severely disordered state of mind. How to use insane in a sentence.
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dictionary.com
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INSANE Definition & Meaning | Dictionary.com
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.
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cambridge.org
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INSANE | English meaning - Cambridge Dictionary
INSANE definition: 1. very annoyed, angry, upset, or excited, often so that you cannot think or behave normally: 2…. Learn more.
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oxfordlearnersdictionaries.com
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insane adjective - Definition, pictures, pronunciation and usage notes ...
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 they have committed because they were not able to know right from wrong at the time.
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wiktionary.org
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insane - Wiktionary, the free dictionary
Adjective insane (comparative more insane or insaner, superlative most insane or insanest) Exhibiting unsoundness or disorder of mind; not sane; utterly mad. Synonyms: see Thesaurus: insane
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thefreedictionary.com
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Insane - definition of insane by The Free Dictionary
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 were the result of an insane jealousy.
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collinsdictionary.com
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INSANE definition in American English | Collins English Dictionary
If you describe a decision or action as insane, you think it is very foolish or excessive.
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wordreference.com
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insane - WordReference.com Dictionary of English
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 who is mentally deranged: insane actions; an insane asylum. utterly senseless: an insane plan.
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oed.com
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insane, adj. & n. meanings, etymology and more | Oxford English Dictionary
insane, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary
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definitions.net
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What does insane mean? - Definitions.net
Insane refers to a state of severe mental illness or mental disorder, characterized by a significant impairment in one's ability to think, reason, or perceive reality. It is often marked by unpredictable or irrational behavior, delusions, hallucinations, or an inability to function in society.