Synonyms of authentic in English:

authentic


See definition of authentic

adjective

1‘the first authentic Rubens in the museum's collection’

SYNONYMS
genuine, original, real, actual, pukka, bona fide, true, veritable
sterling
attested, undisputed, rightful, legitimate, lawful, legal, valid
echt
informal the real McCoy, the genuine article, the real thing, your actual, kosher, honest-to-goodness
Australian, New Zealand informal dinkum
rare simon-pure
ANTONYMS

fake, spurious

2‘an authentic depiction of the situation’

SYNONYMS
reliable, dependable, trustworthy, authoritative, honest, faithful
accurate, exact, factual, true, truthful, veracious, true to life
informal straight from the horse's mouth
rare veridical
ANTONYMS

unreliable, inaccurate