Longstanding
Longstanding adjective - Having existed for a long time.
Unnew and longstanding are semantically related. In some cases you can use "Unnew" instead an adjective "Longstanding".
Unnew
Longstanding and unnew are semantically related. You can use "Longstanding" instead an adjective "Unnew".
Mutual synonyms
Cite this Source
Unnew and Longstanding. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/longstanding/unnew
Longstanding & Unnew. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/longstanding/unnew>.
Unnew or Longstanding. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/longstanding/unnew.
Google Ngram Viewer shows how "longstanding" and "unnew" have occurred on timeline