- without a date
- without limit or end
- too old for its date to be fixed
- still good or interesting though old
- Having no date whatsoever.
- So ancient that no date can be determined.
- Having no limits in time; timeless.
(comparative more dateless, superlative most dateless)
Unknown. Perhaps derived from Old English þeatless (“thoughtless', "without plan”). See also deedless.
Coined between 1585 and 1595 from date + -less