How to say "abusive" in Japanese

• 口汚いくちぎたない
  i-adjectiveCovers 'abusive' in the sense of foul-mouthed: language that is vulgar, filthy, or insulting. Use it for a person, or their words, that hurl abuse through coarse language.
  彼かれらは彼女かのじょを口汚くちぎたなくののしった。↗

  They used abusive language to her.
• 口さがないくちさがない
  i-adjectiveIts core sense is gossipy, critical, ceaseless talk; 'abusive' fits only loosely, covering badmouthing rather than direct verbal abuse, so it is seldom the word you want for foul-mouthed abuse.

Use 「口汚い」 for 'abusive' meaning foul-mouthed, as when someone hurls vulgar insults; 「口さがない」 really describes gossipy, critical, ceaseless talk, so it fits 'abusive' only loosely, for badmouthing rather than direct verbal abuse.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 口汚いくちぎたないfoul-mouthed
• 口さがないくちさがないgossipy
• ブラックexploitative (company)