Obsolete
Synonyms Out of date, outmoded, no longer in use, fallen into disuse, outworn, antediluvian, discarded, old, antique, ancient, extinct, dead, out of fashion, behind the times, passé, old hat, geriatric, past its sell-by date, outdated, old-fashioned, disused, superannuated, antiquated, anachronistic, discontinued, dated, archaic, fossilized, defunct, bygone, out, démodé, vieux jeu, out of the ark, prehistoric, and antwacky.
Example Sentences
Many technologies have become obsolete quickly.
His skills are becoming obsolete nowadays.
The software is now considered obsolete.
She replaced the obsolete equipment yesterday.