sempiternal
1 antonym for sempiternal — opposites grouped by meaning.
Adj — Lasting forever; without end.
Antonyms
Etymology
Came into English from Old French sempiternel, which developed from Medieval Latin sempiternālis, in turn from Latin sempiternus, itself a contraction of semperæternus, formed from semper (“always”) and æternus (“eternal”).
Full origin of sempiternal →