X-rated

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

X级, 成人级

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.
这部电影被评为X级
They were watching an X-rated video.
他们正在看一部X级视频。