adjective \ˈlü-nē\

: crazy or foolish


Full Definition of LOONY

:  crazy, foolish
loo·ni·ness noun
loony noun

Variants of LOONY

loo·ny also loo·ney \ˈlü-nē\

Examples of LOONY

  1. Every family includes someone who's a little loony.
  2. <that's got to be the looniest idea I've ever heard>

Origin of LOONY

by shortening & alteration from lunatic
First Known Use: 1872


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