sempiternal

adj.
Enduring forever; eternal. See synonyms at infinite.

[Middle English, from Old French sempiternel, from Late Latin sempiternālis, from Latin sempiternus : semper, always + aeternus, eternal.]

sempiternity sem'pi·ter'ni·ty (-nĭ-tē) n.

adjective

Without beginning or end: eternal, infinite. See limited/unlimited.

of never-ending duration: eternal

Note: click on a word meaning below to see its connections and related words.

The adjective has one meaning:

Meaning #1: having no known beginning and presumably no end
  Synonyms: dateless, endless

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