Blasphemous

(a.) Speaking or writing blasphemy; uttering or exhibiting anything impiously irreverent; profane; as, a blasphemous person; containing blasphemy; as, a blasphemous book; a blasphemous caricature.

Thesaurus Entries

Rabelaisian, abusive, apostate, atheistic, backsliding, calumniatory, calumnious, comminatory, contumelious, cursing, damnatory, denunciatory, dirty, disrespectful, dysphemistic, epithetic, evil, excommunicative, excommunicatory, execratory, fallen, fallen from grace, foul, fulminatory, impious, imprecatory, iniquitous, irreligious, irreverent, lapsed, maledictory, obscene, profanatory, profane, raw, recidivist, recidivistic, recreant, renegade, ribald, risque, sacrilegious, scatologic, scurrile, scurrilous, sinful, undutiful, vile, vituperative, wicked