XXX
0 antonyms and opposites of XXX, grouped by meaning.
Adjective — Marking content as explicit or hardcore pornographic material.
Etymology
The pornography sense comes from the US film rating "X," introduced in 1968 for adult content; posters exaggerated it to "XXX" to imply something even more extreme. The "kisses" sense is unrelated, from the letter X historically representing a kiss on letters.
Full origin of XXX →Frequently asked questions
What does XXX mean at the end of a text message?
At the end of a text or letter, XXX is an informal symbol for kisses, used as a friendly or affectionate sign-off. This usage is unrelated to its meaning as a label for explicit content.
Is XXX appropriate in formal or professional writing?
No, XXX is informal in both its senses and should be avoided in formal or professional writing. As a content label it is also explicit in nature, and as a sign-off it is reserved for personal, casual messages.