Obsolete
Obsolete adjective - Having passed its time of use or usefulness.
Usage example: I was told my old printer is obsolete and I can't get replacement parts
Old is a synonym for obsolete in outdated topic. In some cases you can use "Old" instead the word "Obsolete" as an adjective or a noun, when it comes to topics like in vogue, no longer in use.
Old
Old adjective - Dating or surviving from the distant past.
Usage example: an extremely old piece of jewelry was discovered in the Egyptian ruins
Obsolete is a synonym for old in out of date topic. You can use "Obsolete" instead an adjective "Old", if it concerns topics such as old-fashioned, outdated.
Mutual synonyms
Cite this Source
Old and Obsolete. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/obsolete/old
Obsolete & Old. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/obsolete/old>.
Old or Obsolete. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/obsolete/old.
Google Ngram Viewer shows how "obsolete" and "old" have occurred on timeline