C1 真的;真正的;可靠的;可信的If something is authentic, it is real, true, or what people say it is.
an authentic 1920s dress 20世纪20年代女装真品
authentic Italian food 正宗意大利食品
He was there and saw what happened, so his is the only authentic account. 他在现场,并看到了事情的经过,所以他的叙述是唯一可靠的说法。