Synonyms for Forgotten:

adj.

abandoned (adjective)
forsaken, deserted, neglected.
bygone (adjective)
extinct.
desolate (adjective)
forlorn, abandoned, uninhabited, dismal, miserable, forsaken, lonely, stark, deserted, bare, barren, desert, bleak, inhospitable, dreary.
excluded (adjective)
Omitted.
forgotten (adjective)
lost, unrecalled, elapsed, irrecoverable, obliterated, past recollection, lapsed, consigned to oblivion, Erased, unremembered, blanked out, blotted out, abandoned, extinct, Omitted, gone.
forlorn (adjective)
miserable, lonely.
godforsaken (adjective)
forlorn, dismal.
lost (adjective)
unremembered.
neglected (adjective)
neglected.
omitted (adjective)
overlooked.
past (adjective)
elapsed.

n.

faint, sunk in oblivion, foggy, etched, dim, unrecalled, lost sight of, consigned to oblivion, commemorative, not recoverable, catchy, not recollected, not recalled, unrecollected, elusive, lapsed, blanked out, past recollection, blurred, beyond recall, conscious, dimly, unretained, past recall, blotted out. forgotten (noun)
irrecoverable, disregarded, unnoticed, lost, unrecoverable.

v.

forgave (verb)
Forbore, dismissed, Forgot, exonerated, acquitted, overlooked, Reprieved, Remitted, Forgave, Condoned, Pardoned, Forgiven, vindicated, Tolerated, Forborne, absolved, Relented, showed mercy, excused.
forgot (verb)
neglected, Omitted, Blanked, elapsed, Erased, lost, obliterated.
neglected (verb)
failed, disregarded, ignored.

Other synonyms:

adj.
forlorn, lost, overlooked, unrecalled.

Usage examples for forgotten

  1. He had forgotten her. – The Literary Sense by E. Nesbit
  2. I was forgotten too. – The Garden Party by Katherine Mansfield
  3. This had been forgotten – The Eagle Cliff by R.M. Ballantyne