sempiternal
2 synonyms and 1 antonym for sempiternal, grouped by meaning and by how common each one is.
Adj — Lasting forever; without end.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
dateless
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 →