The meaning of LOONY is foolish, eccentric. How to use loony in a sentence.

While this can prove tricky for famous estates and those looking to capitalize from someone else’s legacy, it ensures that beloved works can live forever, even if it’s in some loony, bastardized way.

If you refer to someone as a loony, you mean that they behave in a way that seems mad, strange, or eccentric.

Dec 25, 2025 · loony (plural loonies) (informal, offensive, derogatory) An insane or very foolish person.

LOONY definition: 1. silly or stupid: 2. a person who is crazy, silly, or strange: 3. silly or stupid: . Learn more.

Definition of loony adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

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

Loony definition: Extremely foolish or silly.

Britannica Dictionary definition of LOONY informal : crazy or foolish loony extremists

Loony is an informal, derogatory term for mentally ill, but it can also mean silly or outrageous. You could say, "My parents are loony — they call me three times a day and are always sending me photos of …