← BackshareGuessfoulmouthed/ˈfaʊlˌmaʊðd/adjectiveUsing rude, offensive, or vulgar language.The coach was known for being foulmouthed during games.She apologized for her foulmouthed remarks at the meeting.The movie was criticized for its foulmouthed characters.SynonymscoarsecrudeprofaneAntonymspoliteclean