timeless adjective 6noun 1forms 2 adjective6 •Not affected by time; ageless. •Not decreasing over time in quality and appeal.The cave carvings have a timeless beauty. •Eternal.When Worlds, that count his Circles now, unhing’d, (Fate the loud Signal sounding) headlong rush To timeless Night and Chaos, whence they rose. — 1743 •Outside of time; extratemporal. •Without a time limit; untimed. •(no longer used) Done at an improper time; unseasonable; untimely.Must I behold thy timeless, cruel death? — 1591 noun1 •A gene encoding an essential protein that regulates circadian rhythm, normally written in italics: timeless. formsmore timeless · most timeless
