dateless

UK: /ˈdeɪtlɪs/ US: (dāt′lis)

WordReference Random House Unabridged Dictionary of American English © 2026

date•less  (dāt′lis), adj. 

1. without a date;
   undated.
2. endless;
   limitless.
3. so old as to be undatable:
   a dateless rock formation.
4. of permanent interest regardless of age:
   a dateless work of art.
5. having no social engagement.

• date¹ + -less 1585–95

Collins Concise English Dictionary © HarperCollins Publishers::

dateless / ˈdeɪtlɪs/ adjective

1. likely to remain fashionable, relevant, or interesting regardless of age; timeless