Antonyms of adj extinct

3 senses of extinct

Sense 1
extinct (vs. extant), nonextant -- (no longer in existence; lost or especially having died out leaving no living representatives; "an extinct species of fish"; "an extinct royal family"; "extinct laws and customs")

extant (vs. extinct) -- (still in existence; not extinct or destroyed or lost; "extant manuscripts"; "specimens of graphic art found among extant barbaric folk"- Edward Clodd)
        => living -- (still in active use; "a living language")
        => surviving, living -- (still in existence; "the Wollemi pine found in Australia is a surviving specimen of a conifer thought to have been long extinct and therefore known as a living fossil"; "the only surviving frontier blockhouse in Pennsylvania")

Sense 2
extinct (vs. active) -- ((of e.g. volcanos) permanently inactive; "an extinct volcano")

active (vs. extinct) -- ((of e.g. volcanos) capable of erupting)
        => alive, live -- (capable of erupting; "a live volcano"; "the volcano is very much alive")

Sense 3
extinct, out (predicate) -- (being out or having grown cold; "threw his extinct cigarette into the stream"; "the fire is out")

INDIRECT (VIA dead) -> live -- (exerting force or containing energy; "live coals"; "tossed a live cigarette out the window"; "got a shock from a live wire"; "live ore is unmined ore"; "a live bomb"; "a live ball is one in play")

Similarity of adj extinct

3 senses of extinct

Sense 1
extinct (vs. extant), nonextant -- (no longer in existence; lost or especially having died out leaving no living representatives; "an extinct species of fish"; "an extinct royal family"; "extinct laws and customs")
       => dead -- (not surviving in active use; "Latin is a dead language")
          Also See-> nonexistent#1

Sense 2
extinct (vs. active) -- ((of e.g. volcanos) permanently inactive; "an extinct volcano")
       => dead -- (physically inactive; "Crater Lake is in the crater of a dead volcano of the Cascade Range")

Sense 3
extinct, out (predicate) -- (being out or having grown cold; "threw his extinct cigarette into the stream"; "the fire is out")
       => dead (vs. live) -- (not showing characteristics of life especially the capacity to sustain life; no longer exerting force or having energy or heat; "Mars is a dead planet"; "dead soil"; "dead coals"; "the fire is dead")