Synonyms of the word

sempiternal

• adj. Everlasting, eternal.
• adj. (philosophy) Everlasting – that is, having infinite temporal duration – as opposed to eternal, outside…

dateless

• adj. Out of one's head; deranged.
• adj. (Britain, dialect, slang) thick-headed.
• adj. Without a date imprinted, assigned, or associated.
• adj. Having no date—a meeting with a lover or potential lover.
• adj. Timeless; immortal.
• adj. Without a start; immemorial.
• adj. (archaic) Without an end; endless.

endless

• adj. Having no end.
• adj. Extending indefinitely.
• adj. (obsolete) Without profitable end; fruitless; unsatisfying.

infinite

• adj. Indefinably large, countlessly great; immense.
• adj. Boundless, endless, without end or limits; innumerable.
• adj. With plural noun: infinitely many.
• adj. (mathematics) Greater than any positive quantity or magnitude; limitless.
• adj. (set theory, of a set) Having infinitely many elements.
• adj. (grammar) Not limited by person or number.
• adj. (music) Capable of endless repetition; said of certain forms of the canon, also called perpetual fugues,…
• num. Infinitely many.