nonextant
1. [ adjective ] no longer in existence; lost or especially having died out leaving no living representatives
Synonyms: extinct
Examples:

"an extinct species of fish" "an extinct royal family" "extinct laws and customs"

Related terms: extant dead nonexistent
2. [ adjective ] no longer existing or inaccessible through loss or destruction
Examples:

"its nonextant original was written on vellum"- G.B.Saul

Related terms: nonexistent
Similar spelling:   nonextensile