Old
Old adjective - Being of advanced years and especially past middle age.
Skilful and old are semantically related. in mature topic. In some cases you can use "Skilful" instead an adjective "Old", when it comes to topics like long-established.
Cite this Source
Skilful and Old. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/old/skilful
Old & Skilful. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/old/skilful>.
Skilful or Old. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/old/skilful.
Google Ngram Viewer shows how "old" and "skilful" have occurred on timeline