(Relative to past) Having existed for so great a period of time that its longevity cannot be expressed.
Eternal is defined as not having a beginning or an end.
Existing unchanged forever
Find another word for dateless. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for dateless, like: ageless, eternal, timeless, eterne, change, undated, endless and sempiternal.