<p><strong>Adjective:</strong></p><ul><li>Not false or copied; genuine; real: an authentic antique.</li><li>Having an origin supported by unquestionable evidence; authenticated; verified: an authentic document of the Middle Ages; an authentic work of the old master.</li><li>Representing one’s true nature or beliefs; true to oneself or to the person identified: a story told in the authentic voice of a Midwestern farmer; a senator’s speech that sounded authentic.</li><li>Entitled to acceptance or belief because of agreement with known facts or experience; reliable; trustworthy: an authentic report on poverty in Africa.</li><li>Law. Executed with all due formalities: an authentic deed.</li><li>Music. (Of a church mode) having a range extending from the final to the octave above. Compare plagal.</li><li>(Of a cadence) consisting of a dominant harmony followed by a tonic.</li><li>Obsolete. Authoritative.</li></ul>