from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having no date whatsoever.
  • adjective So ancient that no date can be determined.
  • adjective Having no limits in time; timeless.

from The Century Dictionary.

  • Having no date; bearing nothing to indicate its date.
  • Not distinguishable or divisible by dates; without incident; eventless.
  • So old or far distant in time as to be undatable; of indefinitely long duration.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Without date; having no fixed time.
  • adjective not having a social companion for an occasion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective of such great duration as to preclude the possibility of being assigned a date
  • adjective not bearing a date
  • adjective unaffected by time
  • adjective having no known beginning and presumably no end


from Wiktionary, Creative Commons Attribution/Share-Alike License

Coined between 1585 and 1595 from date +‎ -less

from Wiktionary, Creative Commons Attribution/Share-Alike License

Unknown. Perhaps derived from Old English þeatless ("thoughtless', "without plan"). See also deedless.


Help support Wordnik (and make this page ad-free) by adopting the word dateless.



Log in or sign up to get involved in the conversation. It's quick and easy.