Believable or plausible. / Dependable or reliable. / Authentic or convincing.

The state or quality of being credible.

Reputation impacting one's ability to be believed. / (law) Believability of statements by a witness, as measured by whether the testimony is probable or improbable when judged by common experience.

In a credible manner; believably. / Used to report the speaker's assessment of the credibility of a reported statement

plural of credibility

(vulgar, slang) Extremely incredible.

Alternative form of street cred

A discrepancy between the statements made by a person in authority (especially by a politician) and the perceived truth.

plural of credibility gap

Misspelling of credibly.