Keen
Keen adjective - Able to sense slight impressions or differences.
Mettlesome and keen are semantically related. In some cases you can use "Mettlesome" instead an adjective "Keen".
Mettlesome
Mettlesome adjective - Having much high-spirited energy and movement.
Usage example: the mettlesome opening dance number got the audience all jazzed up
Keen and mettlesome are semantically related. Sometimes you can use "Keen" instead an adjective "Mettlesome".
Mutual synonyms
Cite this Source
Mettlesome and Keen. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/keen/mettlesome
Keen & Mettlesome. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/keen/mettlesome>.
Mettlesome or Keen. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/keen/mettlesome.
Google Ngram Viewer shows how "keen" and "mettlesome" have occurred on timeline