unwelcome person, n.
a person who for some reason is not wanted or welcome
<noun.person>
persona non grata unwelcome person
semantic pointers
hypernym
hyponym
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
bad hat, troublemaker, trouble maker, troubler, mischief-maker
undesirable
villain, scoundrel