Thesaurus

Synonyms for Stern include:

abstemious, austere, bare, blue, chaste, corrective, demanding, difficult, disciplinal, disciplinary, dry, exacting, exigent, featureless, grim, hard, hard to please, hard-to-please, homely, implacable, inelaborate, inexorable, literal, merciless, mere, monkish, needy, nonindulgent, plain, puritan, puritanic, puritanical, relentless, renunciant, renunciative, rigorous, self-abnegating, self-denying, self-disciplined, self-restraining, severe, simple, spartan, stark, stern, strict, stringent, tailored, tight, tightened, trim, unadorned, unappeasable, undecorated, unelaborate, unforgiving, unmerciful, unmitigable, unpretentious, unrelenting, unrhetorical, vanilla

stern is a ADJ.

after part, arse, as, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fann, fanny, fundament, hind end, hindquarters, Isaac Stern, keister, nates, poop, posterior, prat, quarter, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush

stern is a NOUN.