Cловарь синонимов английского языка 2 - authentic

a.
1.
Genuine, real, true, veritable, pure, uncorrupted, unadulterated, not false, not spurious, not fictitious, not apocryphal, what it purports to be.
2.
Trustworthy, reliable, authoritative, veritable, true, accurate, according to the facts, accordant with fact, not garbled, not tampered with, from competent and trustworthy sources, from the original data, that cannot be questioned, of approved authority, to be depended on, worthy of belief.