unpleasant person vs cold fish

Other hyponyms of unpleasant person include aggravator, annoyance, alienator, anathema, bete noire, asshole, bastard, cocksucker, dickhead, mother fucker, motherfucker, prick, shit, SOB, son of a bitch, whoreson, bore, dullard, creep, spook, weirdie, weirdo, weirdy, critic, bitch, cunt, cynic, faultfinder, egoist, egotist, swellhead, grabber, churl, crank, crosspatch, grouch, grump, incubus, joker, turkey, demon, devil, fiend, monster, ogre, oppressor, pawer, barbarian, boor, churl, Goth, peasant, tike, tyke, pharisee, pill, prima donna, prude, puritan, bum, crumb, dirty dog, git, lowlife, puke, rat, rotter, scum bag, scumbag, skunk, so-and-so, stinker, stinkpot, flouter, jeerer, mocker, scoffer, common scold, nag, nagger, scold, scolder, selfish person, sneak, scorner, sneerer, prig, snob, snoot, snot, snorter, disagreeable woman, unpleasant woman, arriviste, nouveau-riche, parvenu, upstart, upstart, vulgarian, bellyacher, complainer, crybaby, grumbler, moaner, sniveller, squawker, whiner, dirt ball, insect, louse, worm.