WordWeb Online

1. Utter obscenities or profanities
   "The drunken men were blaspheming loudly in the street";
   - curse, cuss [informal], swear, imprecate, eff [Brit, informal], eff and blind [Brit]
    
2. Speak of in an irreverent or impious manner
   "blaspheme God"

Derived forms: blasphemed, blasphemes, blaspheming

Type of: express, give tongue to, talk about, talk of, utter, verbalise [Brit], verbalize

Encyclopedia: Blaspheme