Sacrilegious

(a.) Violating sacred things; impious; irreverent; polluted with sacrilege; involving sacrilege.

Thesaurus Entries

aberrant, abnormal, abominable, apostate, atheistic, atrocious, backsliding, blasphemous, criminal, delinquent, deviant, disgraceful, disrespectful, evil, fallen, fallen from grace, hardly the thing, heretical, ignominious, illegal, impious, improper, inappropriate, incorrect, indecorous, infamous, irreligious, irreverent, lapsed, not done, not the thing, off-base, off-color, out-of-line, profanatory, profane, recidivist, recidivistic, recreant, renegade, scandalous, shameful, shameless, sinful, terrible, undue, undutiful, unfit, unfitting, ungodly, unlawful, unrighteous, unseemly, unsuitable, wicked, wrong, wrongful