earthy
adjective
2 preaching in the earthy Calvinistic tradition:
down-to-earth, unsophisticated, unrefined, homely, simple, plain, unpretentious, natural, uninhibited, rough, robust.
3 she was shocked by Emma's earthy language:
bawdy, ribald, off colour, racy, rude, vulgar, lewd, crude, foul, coarse, uncouth, rough, dirty, filthy, smutty, unseemly, indelicate, indecent, indecorous, obscene;
informal blue, raunchy, locker-room, X-rated;
British, informal fruity, saucy, near the knuckle, close to the bone;
North American, informal gamy;
euphemistic adult.
▷antonyms decorous, proper, prim.
earthy Oxford Dictionary of English