cockamamie

from WordNet (r) 3.0 (2006)

cockamamie
    adj 1: ludicrous, foolish; "gave me a cockamamie reason for not
           going"; "wore a goofy hat"; "a silly idea"; "some wacky
           plan for selling more books" [syn: {cockamamie},
           {cockamamy}, {goofy}, {sappy}, {silly}, {wacky},
           {whacky}, {zany}]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "cockamamie":
      absurd, beyond belief, bizarre, crazy, extravagant, fantastic,
      foolish, grotesque, high-flown, incredible, laughable, ludicrous,
      monstrous, nonsensical, outrageous, outre, poppycockish,
      preposterous, ridiculous, weird, wild

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