Synonyms: nonextant
Definition: no longer existing or inaccessible through loss or destruction
Usage: its nonextant original was written on vellum- G.B.Saul
Similar words: nonexistent
Definition: not having existence or being or actuality
Usage: chimeras are nonexistent
Definition: no longer in existence; lost or especially having died out leaving no living representatives
Usage: an extinct species of fish; an extinct royal family; extinct laws and customs