Difference between Presumptive and Credible

Presumptive

Part of speech: adjective

Definition: based on presumption, probability, conjecture, hypothesis or belief making presumptions; behaving as one who presumes, who assumes that which they perhaps shouldn't.

Credible

Part of speech: adjective

Definition: believable or plausibleauthentic or convincing

Example sentence: The logical man must either deny all miracles or none, and our American Indian myths and hero stories are perhaps, in themselves, quite as credible as those of the Hebrews of old.