When something is prohibited, it's not allowed. If you see the sign "Swimming is prohibited," stay out of the water.

Whether used as a verb ("You prohibited your friend from entering") or an adjective ("The prohibited word escaped your lips"), prohibited means something was forbidden — a no-no. You often see it in signs like "Smoking prohibited." It's a strong word, indicating that something is banned and suggesting dire consequences if the ban is not obeyed. On the other hand, when something is prohibited it might seem more appealing.

Definitions of prohibited

adj forbidden by law

prohibited by law or by official or accepted rules

adj excluded from use or mention

forbidden, out, proscribed, taboo, tabu, verboten
not permitted

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