- (of e.g. volcanos) permanently inactive
"an extinct volcano"
- Dinosaurs are now extinct.
- Butterflies of this species are now extinct.
- How many Native American languages went extinct?
- The dodo is an already extinct species.
- You added sentences in extinct languages.
- Dinosaurs became extinct a very long time ago.
- Unless whales are protected, they will become extinct.
- Once a species goes extinct, it’s gone forever.
- What would happen if the human race goes extinct?
- Dinosaur eggs? Impossible. These animals are already extinct.
- This custom became extinct a long time ago.
- The species will be made extinct by the end of this century.
- Many animals that lived thousands of years ago are now extinct.
- As likely as not, whales will be extinct by the end of this century.
- It was during the ice age that the saber-toothed tiger became extinct.