Intelligent
Intelligent adjective - Having or showing quickness of mind.
Vigorous and intelligent are semantically related. In some cases you can use "Vigorous" instead an adjective "Intelligent".
Vigorous
Vigorous adjective - Having active strength of body or mind.
Intelligent and vigorous are semantically related. Sometimes you can use "Intelligent" instead an adjective "Vigorous".
Cite this Source
Vigorous and Intelligent. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/intelligent/vigorous
Intelligent & Vigorous. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/intelligent/vigorous>.
Vigorous or Intelligent. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/intelligent/vigorous.
Google Ngram Viewer shows how "intelligent" and "vigorous" have occurred on timeline