THESAURUS
nonexistent
absconded, absent, away, deleted, departed, devoid, disappeared, existless, extinct, fancied, fictive, gone, gone away, illusory, imaginary, imaginational, imagined, lacking, lost, lost to sight, lost to view, minus, missing, negative, no longer present, no more, nonattendant, not found, not present, notional, null, omitted, out of sight, past and gone, subtracted, supposititious, taken away, unactual, unexisting, unreal, vacuous, vanished, visional, void, wanting, without being
ROGET THESAURUS
nonexistent
Inexistence
N
inexistence, nonexistence, nonsubsistence, nonentity, nil, negativeness, nullity, nihility, nihilism, tabula rasa, blank, abeyance, absence, no such thing, nonbeing, nothingness, oblivion, annihilation, extinction, extinguishment, extirpation, Nirvana, obliteration, inexistent,
nonexistent, negative, blank, missing, omitted, absent, insubstantial, shadowy, spectral, visionary, unreal, potential, virtual, baseless, in nubibus, unsubstantial, vain, unborn, uncreated, unbegotten, unconceived, unproduced, unmade, perished, annihilated extinct, exhausted, gone, lost, vanished, departed, gone with the wind, defunct, fabulous, ideal, supposititious &c, negatively, virtually, non ens.