Akademik

authenticity
noun
undisputed credibility (Freq. 7)
Syn: ↑genuineness, ↑legitimacy
Derivationally related forms: ↑genuine (for: ↑genuineness), ↑authentic
Hypernyms: ↑credibility, ↑credibleness, ↑believability
Hyponyms: ↑real McCoy, ↑real thing, ↑real stuff

Useful english dictionary. 2012.