idiotic Synonyms

absurd cockeyed imbecile preposterous derisory ridiculous laughable ludicrous nonsensical imbecilic slow risible vapid witless ill-advised scatty fatheaded thoughtless addlebrained addlepated barmy vacuous sappy unreasonable slow-witted crackbrained stupid subnormal thalian thick simple-minded thick-headed silly senseless dotty loopy ill-conceived moronic nitwitted crackpot half-baked goofy short-sighted birdbrained unintelligent pea-brained scatterbrained screwy softheaded mentally retarded