extinct
adj//ɛk-//slocknad, släckt, utdöd
(dated) Of fire, etc.: no longer alight; of a light, etc.: no longer shining; extinguished, quenched.
(geology) Of a geological feature: no longer active; specifically, of a volcano: no longer erupting.
(chiefly, biology) Of an animal or plant species, a class of people, a family, etc.: having died out completely; no longer in existence.
Of customs, ideas, laws and legal rights, offices, organizations, etc.: no longer existing or in use; defunct, discontinued, obsolete; specifically, of a title of nobility: no longer having any person qualified to hold it.