nonexistent

adjectives

not having existence or being or actuality
"chimeras are nonexistent"
nonexistent
is derived from
nonexistence
antonym
existent
is similar to
nonexistent
"the thumb is absent"; "her appetite was lacking"
absent, lacking, missing, wanting
is similar to
completely wanting or lacking
"writing barren of insight"; "young recruits destitute of experience"; "innocent of literary merit"; "the sentence was devoid of meaning"
barren, destitute, devoid, free, innocent
is similar to
no longer existing or inaccessible through loss or destruction
"its nonextant original was written on vellum"- G.B.Saul
nonextant
is similar to
having passed out of existence
"vanished civilizations"
vanished
see also
(of e.g. volcanos) permanently inactive
"an extinct volcano"
extinct
is an attribute of
the state or fact of existing
"a point of view gradually coming into being"; "laws in existence for centuries"
being, beingness, existence