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.
這幅畫被發現是偽造的,導致它的價值暴跌。