Meaning : No longer in existence. Lost or especially having died out leaving no living representatives.
Example :
An extinct species of fish.
An extinct royal family.
Extinct laws and customs.
Synonyms : nonextant
Still in existence. Not extinct or destroyed or lost.
Extant manuscripts.Meaning : (of e.g. volcanos) permanently inactive.
Example :
An extinct volcano.
(of e.g. volcanos) capable of erupting.
activeMeaning : Being out or having grown cold.
Example :
Threw his extinct cigarette into the stream.
The fire is out.
Synonyms : out