stern

(noun) the rear part of a ship. Synonyms: after part, quarter, poop, tail.

(noun) United States concert violinist (born in Russia in 1920). Synonyms: Stern, Isaac Stern.

(noun) the fleshy part of the human body that you sit on. Synonyms: buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass. Examples: "He deserves a good kick in the butt." "Are you going to sit on your fanny and do nothing?."

(adj) of a stern or strict bearing or demeanor; forbidding in aspect. Synonyms: austere. Examples: "An austere expression." "A stern face."

(adj) not to be placated or appeased or moved by entreaty. Synonyms: grim, inexorable, relentless, unappeasable, unforgiving, unrelenting. Examples: "Grim determination." "Grim necessity." "Russia's final hour, it seemed, approached with inexorable certainty." "Relentless persecution." "The stern demands of parenthood."

(adj) severe and unremitting in making demands. Synonyms: strict, exacting. Examples: "An exacting instructor." "A stern disciplinarian." "Strict standards."

(adj) severely simple. Synonyms: austere, severe, stark. Examples: "A stark interior."