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