Antonyms of adj foul-mouthed

1 sense of foul-mouthed

Sense 1
foul-mouthed, foul-spoken -- (using foul or obscene language; "noisy foul-mouthed women all shouting at once")

INDIRECT (VIA dirty) -> clean, unobjectionable -- ((of behavior or especially language) free from objectionable elements; fit for all observers; "good clean fun"; "a clean joke")

Similarity of adj foul-mouthed

1 sense of foul-mouthed

Sense 1
foul-mouthed, foul-spoken -- (using foul or obscene language; "noisy foul-mouthed women all shouting at once")
       => dirty (vs. clean) -- ((of behavior or especially language) characterized by obscenity or indecency; "dirty words"; "a dirty old man"; "dirty books and movies"; "boys telling dirty jokes"; "has a dirty mouth")

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