obsolete
adjective
this remarkable aircraft will render all other fighters obsolete:
out of date, outdated, outmoded, old-fashioned;
no longer in use, disused, fallen into disuse, superannuated, outworn, antiquated, antediluvian, anachronistic, discarded, discontinued, old, dated, antique, archaic, ancient, fossilized, extinct, defunct, dead, bygone, out of fashion, out, behind the times;
French démodé, passé, vieux jeu;
informal old hat, out of the ark, geriatric, prehistoric;
British, informal past its sell-by date;
Northern English, informal antwacky.
▷antonyms contemporary, current, modern, new, up to date.