Noun

• S: (n) credibility, credibleness, believability (the quality of being believable or trustworthy)
• direct hyponym / full hyponym
• S: (n) authenticity, genuineness, legitimacy (undisputed credibility)
• S: (n) real McCoy, real thing, real stuff (informal usage attributing authenticity)
• S: (n) cogency, validity, rigor, rigour (the quality of being valid and rigorous)
• S: (n) plausibility, plausibleness (apparent validity)
• S: (n) reasonableness, tenability, tenableness (the quality of being plausible or acceptable to a reasonable person) "he questioned the tenability of my claims"
• S: (n) street credibility, street cred, cred (credibility among young fashionable urban individuals)
• attribute
• direct hypernym / inherited hypernym / sister term
• antonym
• derivationally related form