Calcitrant
Hard and calcitrant are semantically related. In some cases you can use "Hard" instead an adjective "Calcitrant".
Hard
Hard adjective - Having or showing a lack of sympathy or tender feelings.
Calcitrant and hard are semantically related. Sometimes you can replace term "Calcitrant" with "Hard", this adjectives are similar.
Cite this Source
Hard and Calcitrant. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/calcitrant/hard
Calcitrant & Hard. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/calcitrant/hard>.
Hard or Calcitrant. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/calcitrant/hard.
Google Ngram Viewer shows how "calcitrant" and "hard" have occurred on timeline