Same word as obscene:

X-rated, atrocious, barnyard, bawdy, blue, coarse, crude, dirty, disgusting, evil, filthy, foul, gross, heinous, hideous, horrible, immodest, improper, impure, lascivious, lewd, licentious, loathsome, loose, lustful, nasty, noisome, outrageous, porno, pornographic, profane, prurient, rank, raunchy, raw, repellent, repugnant, ribald, salacious, scabrous, scatological, scurrilous, shameless, shocking, sickening, smutty, suggestive, unchaste, unclean, unwholesome, vile, wanton, wicked