obsolescent

adjective obsolescent

• dated — Dated things seem old-fashioned, although they may once have been fashionable or modern.
• old — far advanced in the years of one's or its life: an old man; an old horse; an old tree.
• antiquated — If you describe something as antiquated, you are criticizing it because it is very old or old-fashioned.
• unfashionable — observant of or conforming to the fashion; stylish: a fashionable young woman.
• out-of-date — gone out of style or fashion; outmoded; obsolete: out-of-date fashions; out-of-date ideas.