Long standing
Old and long standing are semantically related. In some cases you can use "Old" instead an adjective phrase "Long standing".
Old
Old adjective - Being of advanced years and especially past middle age.
Long standing and old are semantically related. Sometimes you can replace phrase "Long standing" with "Old", this terms are similar.
Mutual synonyms
Both terms in one sentence
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It's also implied that his atheism is of long standing - his speech about his mother's funeral makes it clear that even as an eight-year-old he had no belief in any sort of after life.
Source: Hollywood Atheist
Cite this Source
Old and Long standing. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/long_standing/old
Long standing & Old. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/long_standing/old>.
Old or Long standing. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/long_standing/old.
Google Ngram Viewer shows how "long standing" and "old" have occurred on timeline