dateless

a.	1.	Without date; having no fixed time.
	2.	not having a social companion for an occasion; as, to be dateless for the prom.

Adj.	1.	dateless - having no known beginning and presumably no end; "the dateless rise and fall of the tides"; "time is endless"; "sempiternal truth" Synonyms: sempiternal, endless
	2.	dateless - of such great duration as to preclude the possibility of being assigned a date; "dateless customs"
	3.	dateless - not bearing a date; "a dateless letter" Synonyms: undated
	4.	dateless - unaffected by time; "few characters are so dateless as Hamlet"; "Helen's timeless beauty" Synonyms: timeless

age-old, ageless, ancient, antique, auld, ceaseless, coeternal, constant, continual, continuous, elderly, endless, eternal, eterne, ever-being, ever-durable, ever-during, everlasting, everliving, hoary, immemorial, incessant, indestructible, infinite, interminable, never-ceasing, never-ending, nonstop, nonterminating, nonterminous, of old, of yore, olamic, old, old as Methuselah, old as history, old as time, old-time, olden, perdurable, permanent, perpetual, sempiternal, steady, timeless, unceasing, unending, unintermitting, uninterrupted, unremitting, venerable, without end