Synonyms of uninvited

3 Syllables
unasked, blackballed, excluded, rejected
4 Syllables
undesired, unwished-for, unwelcome, undemanded, uncalled-for, unpopular, unrequested, ungraciousness
5 Syllables
unwelcomeness, unsolicited, inadmissible
6 Syllables
inhospitality, inhospitableness