a bit thick a bit thin absurd bizarre cockamamie crazy doubtable doubtful dubious dubitable extravagant fantastic foolish grotesque hard of belief hard to believe high-flown implausible inconceivable incredible laughable ludicrous monstrous nonsensical not deserving belief open to doubt open to suspicion outrageous outre passing belief poppycockish preposterous problematic questionable ridiculous staggering belief suspect suspicious tall thick thin unbelievable unconvincing unearthly ungodly unimaginable unthinkable unworthy of belief weird wild