Keen
Keen adjective - Able to sense slight impressions or differences.
Perfervid and keen are semantically related. in enthusiastic topic. In some cases you can use "Perfervid" instead an adjective "Keen".
Perfervid
Perfervid adjective - Having or expressing great depth of feeling.
Usage example: the perfervid prose of a romance novel
Mutual synonyms
Cite this Source
Perfervid and Keen. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/keen/perfervid
Keen & Perfervid. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/keen/perfervid>.
Perfervid or Keen. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/keen/perfervid.
Google Ngram Viewer shows how "keen" and "perfervid" have occurred on timeline