Synonyms & related words for loony

Find synonyms, related words, and the definition of loony — including kooky, bonkers, crazy, loopy, wacky, nutty. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to loony

Explore words related to loony — words associated with it, words that go with it, and its nearest matches in meaning. Related words include nutcase, wacko, weirdo, looniness, lunatic, crackpot, demented, doolally. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for loony

Common synonyms for loony include kooky, bonkers, crazy, loopy, wacky, nutty, barmy, batty — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does loony come from?

The word loony breaks down into 2 roots of Latin and English origin: loon, from Latin lunaticus (“moonstruck (clipped from lunatic)”); and -y, from English -y (“characterized by”). Explore each root to see other English words built from the same source.