extinct

• 描述某个物种、语言或习俗等已不复存在或不再使用。

Describes a species, language, or custom that no longer exists or is no longer in use.

1. No longer existingB1formal

   Describes a species or group of organisms that has no living members.

   已灭绝

   • Dinosaurs became extinct millions of years ago.
   • Many species are at risk of going extinct due to habitat loss.
   • The dodo bird is a famous example of an extinct animal.

   同义词deaddefunctgonelostvanished

   反义词aliveexistingextantliving

2. B2formal

   Describes a volcano that is no longer active or likely to erupt.

   死火山

   • Mount Kilimanjaro is an extinct volcano.
   • The region is dotted with extinct volcanic cones.
   • Geologists studied the remains of an extinct volcano.

   同义词deadinactive

   反义词activedormantlive

3. No longer in useB2formal

   Describes a custom, practice, or language that is no longer used or practiced.

   已废弃

   • Latin is considered an extinct language.
   • The tradition of dueling is now extinct in most societies.
   • Many ancient rituals have become extinct over time.

   同义词deaddefunctdisusedobsoletevanished

   反义词activecurrentexistinglivingoperative