for the birds

dubious farfetched flimsy impossible improbable inconceivable incredible unbelievable unconvincing unreasonable

doubtful far-out fishy full of holes obscure problematic puzzling reachy suspect thin too much unsubstantial weak won't hold water won't wash

believable convincing credible likely plausible possible realistic reasonable tenable

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

beyond belief cockamamie cockeyed doubtful dubious far-fetched fishy flaky flimsy 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

doubtful dubious far-out farfetched fishy flimsy full of holes impossible improbable inconceivable incredible obscure problematic puzzling reachy shaky suspect thin too much unbelievable unconvincing unreasonable unsubstantial weak won't hold water won't wash

deficient disappointing distressing mediocre regrettable unacceptable unsuitable

amiss bad damaged disconcerting displeasing disquieting disturbing junky lame no good not good enough not up to par offensive poor rotten sad schlocky second thin undesirable unwelcome unworthy upsetting vexing weak wrong

satisfactory suitable

OK acceptable adequate sufficient