Synonyms to hard of belief

absurd, Pickwickian, a bit thick, a bit thin, abnormal, amusing, anomalous, asinine, balmy, barred, beyond belief, bizarre, childish, closed-out, cockamamie, comic, contrary to reason, crazy, curious, daft, disproportionate, doubtable, doubtful, droll, dubious, dubitable, eccentric, empty, excluded, extravagant, fantastic, farcical, fatuitous, fatuous, foolish, freaked out, freaky, funny, futile, grotesque, hard to believe, harebrained, high-flown, hilarious, hollow, hopeless, humorous, idiotic, idle, illogical, imbecile, imbecilic, implausible, impossible, inane, incoherent, incommensurable, incommensurate, incompatible, inconceivable, incongruous, inconsequent, inconsistent, inconsonant, incredible, insane, irrational, irreconcilable, kooky, laughable, logically impossible, loony, ludicrous, mad, meaningless, monstrous, moronic, nonsensical, not deserving belief, not possible, nuts, nutty, odd, oddball, off, off the wall, open to doubt, open to suspicion, out, out of proportion, outlandish, outrageous, outre, oxymoronic, paradoxical, passing belief, passing strange, peculiar, poppycockish