extinct
adj. 灭绝的；消亡的；（火山）死的；（贵族称号）无合法继承人的；熄灭了的
例句
Herbalism had become an all but extinct skill in the Western world.
草药医术在西方世界几乎已成了一项绝迹的技术。
《柯林斯英汉双解大词典》
The idea of cloning extinct life forms still belongs to science fiction.
对绝种的生命形式进行克隆的想法仍然属于科学幻想。
Scientists are attempting to compare features of extinct animals with living analogues.
科学家正试图把已灭绝动物的特征与现存类似动物相比较。
《牛津词典》
