cockamamie

absurd asinine brainless crazy daffy daft dippy doltish dotty fantastic fatuous feebleminded half-baked half-witted harebrained idiotic ill-advised ill-considered imprudent incautious indiscreet injudicious insane irrational jerky kooky loony ludicrous lunatic mad moronic nonsensical nutty preposterous ridiculous senseless short-sighted silly simple softheaded stupid tomfool unearthly unintelligent unreasonable unwise wacky weak witless zany

aberrant absurd crazy foolish incoherent insane preposterous ridiculous stupid unreasonable unsound unwise wrong

invalid loony raving silly wild

brainless delirious demented disconnected disjointed distraught fallacious flaky freaky injudicious kooky mad mindless nonsensical nutty off-the-wall reasonless sophistic specious unreasoning unstable unthinking wacky

balanced logical rational realistic reasonable responsible sane sensible serious smart sound thoughtful well wise

reflective stable

absurd batty crazy eccentric foolish kooky mad nuts wacky

bedlamite buggy cracked daffy daft demented enthusiastic gung-ho harebrained insane irrational keen loony lunatic potty ridiculous touched unusual warm zealous

balanced calm collected rational reasonable sane sensible

astonishing implausible impossible improbable inconceivable incredible outlandish preposterous too much unimaginable unthinkable

beyond belief cockeyed doubtful dubious far-fetched fishy flaky flimsy for the birds full of holes harebrained incogitable kooky lamebrained open to doubt past belief phony questionable reaching scatterbrained screwy staggering suspect thick thin unconvincing unsubstantial weak won't hold water won't wash

believable conceivable credible imaginable likely plausible possible reasonable tenable

real