ἀδύνατόν [3 verses](adj sg masc/fem/neut acc) "Impossible" is adynatos, which means "unable to do a thing," "without power," "powerless," "without strength," "without skill," "(of things) impossible," and "unrealizable." As an adverb, "weakly," and "feebly."  - "Impossible" is from an adjective that means "unable to do a thing," "without power," and "powerless." Of things, it means "impossible," and "unrealizable." It comes from the negative of the word means "having power." A word that is often translated as "can" in the Greek.