Dateless

Adjective

 * 1) Out of one's head; deranged.
 * 2)  thick-headed
 * They're so dateless that Burger King will not offer them a job.
 * 1)  thick-headed
 * They're so dateless that Burger King will not offer them a job.
 * They're so dateless that Burger King will not offer them a job.

Adjective

 * 1) Without a date imprinted, assigned, or associated.
 * 2) Having no date—a meeting with a lover or potential lover.
 * It is hard to believe that she could be dateless on a Saturday night.
 * 1) Timeless; immortal
 * 2) Without a start; immemorial
 * 3)  Without an end; endless
 * 4) *William Shakespeare, Sonnet XXX,
 * Then can I drown an eye, unused to flow, / For precious friends hid in death's dateless night

Thesaurus
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

Etymology 1
. Perhaps derived from þeatless:. See also deedless.

Etymology 2
Coined between 1585 and 1595 from

Anagrams

 * detassel
 * tasseled