Synonyms of undesired

2 Syllables
lousy, unsought, thankless
3 Syllables
unasked, causeless, displeasing, excluded, obnoxious, unpleasant, rejected, blackballed, repellent, unwanted
4 Syllables
distasteful, disagreeable, unpopular, ill-favored, undemanded, uninvited, unwished-for, unrequested
5 Syllables
undesirable, objectionable, unsolicited, inadmissible, unacceptable, exceptionable