extinct Synonyms

out nonextant past perished prehistoric preterlapsed quondam slaked slain stone-dead obsolescent passed obsolete old olden old-fashioned passe outdated paleozoology parted superannuated terminated no more noncurrent out-of-date one-time out of print prehistorical stone age passed away cap-a-pie outmoded vanished unanimated great auk mustelid old-hat bypast outworn demode died out nonexistent agone dated dead deceased defunct departed disappeared disappear