EXTINCT

extinct

(adjective) (of e.g. volcanos) permanently inactive; “an extinct volcano”

extinct, out

(adjective) being out or having grown cold; “threw his extinct cigarette into the stream”; “the fire is out”

extinct, nonextant

(adjective) 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”

Source: WordNet® 3.1

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Etymology

Adjective

extinct (not comparable)

(dated) Extinguished, no longer alight (of fire, candles etc.)

No longer used; obsolete, discontinued.

(of a group of organisms, as a species) No longer in existence; having died out.

(geology) No longer active.

Synonyms

• (no longer used): See also obsolete

• (having died out): See also inexistent

• (volcanology: no longer erupting): dead

Antonyms

• (no longer alight): burning

• (having died out): extant; See also existent

• (volcanology: no longer erupting): active, dormant

Verb

extinct (third-person singular simple present extincts, present participle extincting, simple past and past participle extincted)

(transitive, nonstandard) To make extinct; to extinguish or annihilate.

Source: Wiktionary

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Ex*tinct", a. Etym: [L. extinctus, exstinctus, p. p. of extinguere, exstinguere. See Extinguish.]

1. Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano. Light, the prime work of God, to me is extinct. Milton.

2. Without a survivor; without force; dead; as, a family becomes extinct; an extinct feud or law.

Ex*tinct", v. t.

Definition: To cause to be extinct. [Obs.] Shak.

Source: Webster’s Unabridged Dictionary 1913 Edition

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