Definition of extinct in English:


Syllabification: ex·tinct
Pronunciation: /ikˈstiNG(k)t


1(Of a species, family, or other larger group) having no living members: trilobites and dinosaurs are extinct
More example sentences
  • But the related species of one extinct group, the glyptodonts, had a single-piece carapace similar to that of tortoises.
  • Most paleontologists now agree this member of an extinct group of birds is not the ancestor of any group of modern birds, nor is it a link between reptiles and birds.
  • He also included several extinct genera in this family, some of which have a pyramidal spire.
vanished, lost, died out, no longer existing, no longer extant, wiped out, destroyed, gone
1.1No longer in existence: an extinct language the sort of girls' school that is now extinct
More example sentences
  • Many extinct or vanishing Indian languages are the only evidence we have of the long migrations and complex histories of particular peoples.
  • However, Tulu language with its near extinct script has been generating much enthusiasm amongst the linguists, as it is now believed to be one of the oldest Dravidian languages.
  • Learning to speak an extinct indigenous language should be an enormous benefit to Aboriginal kids in getting a job in twenty-first century Australia.
1.2(Of a volcano) not having erupted in recorded history.
More example sentences
  • Visually, the city keeps you enthralled, with its setting atop a series of extinct volcanoes and rocky crags.
  • El Laco is an extinct volcano of pure magnetite!
  • Just to the west of Mount Schank, an extinct volcano created a series of deep sinkholes, which harbour some unusual life forms.
1.3No longer burning: his now extinct pipe
More example sentences
  • An extinct cigar lay on the carpet, where it had fallen from the mouth of some airman swiftly overtaken by sleep.
  • I found Jack sitting alone in the dark at the open studio window, an extinct pipe between his lips.
1.4(Of a title of nobility) having no qualified claimant.
More example sentences
  • The new d' Urbervilles changed their name to a noble name they thought extinct so that no one in the area will know how they made their money.
  • Even so I didn't know there was an extinct title for Walkley?
  • In that year both these names were replaced by the present one, which is presumably an allusion to the extinct title formerly held by a member of the Sutton family.


late Middle English (in the sense 'no longer alight'): from Latin exstinct- 'extinguished', from the verb exstinguere (see extinguish).

Definition of extinct in: