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Word of the Day Tuesday, June 9, 2026

loony

/luːni/ adjective · British & US
Valid in UKValid in US
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What does loony mean?

adjective

Extremely foolish or absurd; crazy. Used to describe someone or something that is considered ridiculous or irrational.

Example

"The loony idea of building a rollercoaster in the middle of the city was met with widespread criticism."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for loony

Antonyms of loony

Rhymes with loony

Etymologically related