This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The quality or condition of being authentic, trustworthy, or genuine.

n. The quality of being genuine or not corrupted from the original.

n. Truthfulness of origins, attributions, commitments, sincerity, and intentions.

n. The quality of being authentic (of established authority).

n. The quality of being authentic or of established authority for truth and correctness.

n. Genuineness; the quality of being genuine or not corrupted from the original.

n. The quality of being authentic, or entitled to acceptance as authoritative, genuine, true, or correct: as, the authenticity of the Scriptures or of a document; the authenticity of a portrait; the authenticity of a statement.

n. undisputed credibility

"The only viable option I see to maintain authenticity is to get an older, more muscular actor who looks sort of like Taylor to play Jacob in New Moon."

credibility    believability    credibleness   

authentically   

real stuff    real thing    real mccoy   

genuineness   

complicity    duplicity    ethnicity    multiplicity    publicity    simplicity    synchronicity   

genuineness    veracity    validity    trustworthiness    correctness    reliability    authorship    credibility    sincerity    legality