scum

1 people looked down upon as ignorant and of the lowest class claimed that only scum lived in that part of town Synonyms proletariat, rabblement, ragtag and bobtail, riffraff, rout, rabble, tag, rag, and bobtail (or tagrag and bobtail), trash, unwashedRelated Words dregs; commoners, commons, herd, hoi polloi, masses, millions, mob, multitude, people, plebeians, populace, public, rank and file; bourgeoisie, middle class, working classNear Antonyms elect, establishment; gentlefolk (also gentlefolks), nobility, peerageAntonyms A-list, aristocracy, elite, gentry, quality, society, upper class, upper crust

2 a person whose behavior is offensive to others ignore the heckler—he's complete scum Synonyms bastard, beast, bleeder [British], blighter [chiefly British], boor, bounder, bugger, buzzard, cad, chuff, churl, clown, creep, cretin, crud [slang], crumb [slang], cur, dirtbag [slang], dog, fink, heel, hound, joker, louse, lout, pill, rat, rat fink, reptile, rotter, schmuck [slang], jerk, scumbag [slang], scuzzball [slang], skunk, sleaze, sleazebag [slang], sleazeball [slang], slime, slimeball [slang], slob, snake, so-and-so, sod [chiefly British], stinkard, stinker, swine, toad, varmint, verminRelated Words barbarian, brute, caveman, Neanderthal, savage; loudmouth, vulgarian; lowlife, miscreant, rascal, rogue, roughneck, scab, scamp, scoundrel, villain, wretch; booby, doofus [slang], fool, jackass, nincompoop, ninny, nit [chiefly British], nitwit, nut, schmo (or schmoe) [slang]; airhead, birdbrain, blockhead, dink [slang], dolt, dope, dork [slang], goon, half-wit, idiot, imbecile, moron, turkey; brat, insolent, nuisance, pest, snip; snob, snoot, snot; dweeb [slang], nerdNear Antonyms hero, heroine, idol, role model; gentleman, lady; angel, saint