X-rated /ˈeks ˌreɪtəd/
adjective an X-rated film is one that people under 18 are not allowed to see because it includes sex or violence
[TahlilGaran] Dictionary of Contemporary English ▲
x rated adj.,
slang,
informal Pertaining to movies, magazines, and literature judged pornographic and therefore off limits for minors.
My son celebrated his 21st birthday by going to an x-rated movie. [TahlilGaran] English Idioms Dictionary ▲