X-rated

US /ˌeksˈreɪtɪd/
UK /ˌeksˈreɪtɪd/
"X-rated" picture
1.

X級, 成人級

denoting a film or other entertainment that is suitable only for adults because it contains sexually explicit material or violence

:
The movie received an X-rated classification.
這部電影被評為X級
They were watching an X-rated video.
他們正在看一部X級視頻。