Synonyms of unwanted

2 Syllables
sparer, unsought, dripper, sparest, nerdy
3 Syllables
redundant, unasked, causeless, leftover, uneaten, superfluent, superfluous, unwatched, unvalued, rejected, neglected
4 Syllables
dislikable, unwelcome, unlikable, residuary, uncalled-for, unpopular, undemanded, disfavored, unaccepted, ungraciousness, undesired, unwished-for, unconsumed, unrequested
5 Syllables
undesirable, unwelcomeness, objectionable, inadmissible, unallowable, unacceptable, exceptionable
6 Syllables
inhospitality, inhospitableness
7 Syllables
supererogatory