Synonyms of neglected

1 Syllable
démodé, wild
2 Syllables
shabby, scrubby, lapsed, unkempt, wilder, seedier, beat-up, junked, shabbier, potest, shunned, unsung, run-down, decayed, fallow, curer, poter, seedy, wildest, scorned, tatty, scrubbier, spurned, slipshod, jilted, unneat, passer
3 Syllables
ownerless, disdained, evaded, unwatched, unthorough, dogeared, despised, declined, dog-eared, untended, deferred, deserted, unplanted, unseeded, demoded, old-fangled, unwanted, unstylish, broken-down, affronted, unhailed, discarded, ignored, postponed, side-tracked, unused, forgotten, dismissed, omitted, unheeded
4 Syllables
unremarked, depreciated, unattended, undervalued, down-at-the-heel, uncared-for, abandoned, old-fashioned, godforsaken, out-of-style, disregarded, unglorified, pigeon-holed, unobserved, unnoticed, overlooked
5 Syllables
unconsidered, dilapidated, deteriorated
6 Syllables
underestimated, undomesticated