timeless

• POS: Adjective
• HYPHEN: time=less

CIDE DICTIONARY

timeless, a. 

•  Done at an improper time; unseasonable; untimely.  [1913 Webster]

  "Nor fits it to prolong the heavenly feast
  Timeless, indecent."  [1913 Webster]
•  Done or occurring before the proper time; premature; immature; as, a timeless grave.  [1913 Webster]

  "Must I behold thy timeless, cruel death?"  [1913 Webster]
•  Having no end; interminable; unending.  Young.  [1913 Webster]

OXFORD DICTIONARY

timeless, adj. not affected by the passage of time; eternal.

Derivative

timelessly adv. timelessness n.

THESAURUS

timeless

abiding, age-old, ageless, all-knowing, all-powerful, all-seeing, all-wise, almighty, ancient, antique, auld, boundless, ceaseless, changeless, coeternal, constant, continual, continuous, creating, creative, dateless, deathless, elderly, endless, eternal, eternally the same, eterne, ever-being, ever-durable, ever-during, everlasting, everliving, glorious, good, hallowed, highest, hoary, holy, immemorial, immortal, immutable, incessant, indestructible, infinite, interminable, just, limitless, loving, luminous, majestic, making, merciful, never-ceasing, never-ending, nonstop, nonterminating, nonterminous, numinous, of old, of yore, olamic, old, old as Methuselah, old as history, old as time, old-time, olden, omnipotent, omnipresent, omniscient, one, perdurable, permanent, perpetual, radiant, sacred, sempiternal, shaping, sovereign, steady, supreme, ubiquitous, unbounded, unceasing, unchanged, unchanging, undefined, undying, unending, unintermitting, uninterrupted, unlimited, unremitting, venerable, without end

ROGET THESAURUS

timeless

Untimeliness

N untimeliness, intempestivity, unseasonableness, inexpedience, unsuitable time, improper time, unreasonableness, evil hour, contretemps, intrusion, anachronism, bad time, wrong time, inappropriate time, not the right occasion, unsuitable time, inopportune time, poor timing, ill-timed, mistimed, ill-fated, ill-omened, ill-starred, untimely, unseasonable, out of date, out of season, inopportune, timeless, intrusive, untoward, mal a propos, unlucky, inauspicious, infelicitous, unbefitting, unpropitious, unfortunate, unfavorable, unsuited, inexpedient, unpunctual, too late for, premature, too soon for, wise after the event, monday morning quarterbacking, twenty-twenty hindsight, inopportunely, as ill luck would have it, in an evil hour, the time having gone by, a day after the fair, after death the doctor, after meat mustard.