inauthentic
🇺🇸
/ˌɪnɔːˈθentɪk/
🇬🇧
/ˌɪnɔːˈθentɪk/
Something that is not genuine or real, and may be false or misleading.
The painting was found to be inauthentic, causing its value to plummet.
这幅画被发现是伪造的,导致它的价值暴跌。