Be constant
Harden and be constant are semantically related. In some cases you can use "Harden" instead a verb phrase "Be constant".
Harden
Harden verb - To become physically firm or solid.
Be constant and harden are semantically related. Sometimes you can use "Be constant" instead a verb "Harden".
Cite this Source
Harden and Be constant. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/be_constant/harden
Be constant & Harden. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/be_constant/harden>.
Harden or Be constant. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/be_constant/harden.
Google Ngram Viewer shows how "be constant" and "harden" have occurred on timeline