Backbone
Backbone noun - A column of bones supporting the trunk of a vertebrate animal.
Hardheartedness and backbone are semantically related. In some cases you can use "Hardheartedness" instead a noun "Backbone".
Nearby Word: backboned
Hardheartedness
Hardheartedness noun - An absence of concern for the welfare of others.
Backbone and hardheartedness are semantically related. Sometimes you can use "Backbone" instead a noun "Hardheartedness".
Mutual synonyms
Cite this Source
Hardheartedness and Backbone. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/backbone/hardheartedness
Backbone & Hardheartedness. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/backbone/hardheartedness>.
Hardheartedness or Backbone. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/backbone/hardheartedness.
Google Ngram Viewer shows how "backbone" and "hardheartedness" have occurred on timeline