Akademik

a person who for some reason is not wanted or welcome

↑unpleasant person, ↑disagreeable person, ↑ingrate, ↑thankless wretch, ↑ungrateful person, ↑intruder, ↑interloper, ↑trespasser, ↑meddler, ↑disreputable person, ↑sourpuss, ↑picklepuss, ↑gloomy Gus, ↑pouter, ↑spoilsport, ↑killjoy, ↑wet blanket, ↑party pooper, ↑tease, ↑teaser, ↑annoyer, ↑vexer, ↑troublemaker, ↑trouble maker, ↑troubler, ↑mischief-maker, ↑bad hat, ↑undesirable, ↑villain, ↑scoundrel