looney

from WordNet (r) 3.0 (2006)

looney
    n 1: someone deranged and possibly dangerous [syn: {crazy},
         {loony}, {looney}, {nutcase}, {weirdo}]

from The Collaborative International Dictionary of English v.0.48

looney \looney\ (l[=oo]n"[y^]) n.
   someone deranged and possibly dangerous.

   Syn: crazy, loony, weirdo.
        [WordNet 1.5]

from The Collaborative International Dictionary of English v.0.48

loony \loon"y\ (l[=oo]n"[y^]), a. [Shortened fr. lunatic.]
   1. Crazy; insane; lunatic; mentally unsound. [Low, U.S.]
      [Written also {loony}, {luny} and {looney}.] See {Luny}.
      [1913 Webster]

   2. Very foolish; very impractical; as, loony ideas.
      [PJC]

from The Collaborative International Dictionary of English v.0.48

Luny \Lu"ny\, a. [Shortened fr. lunatic.]
   Crazy; insane; mentally unsound. [Written also {loony} and
   {looney}.] [Low, U.S.]
   [1913 Webster]

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