Bitterness
Bitterness noun - A deep-seated ill will.
Regretfulness and bitterness are semantically related In some cases you can use "Regretfulness" instead a noun "Bitterness".
Regretfulness
Bitterness and regretfulness are semantically related in upset over past action topic. You can use "Bitterness" instead a noun "Regretfulness".
Cite this Source
Regretfulness and Bitterness. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/bitterness/regretfulness
Bitterness & Regretfulness. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/bitterness/regretfulness>.
Regretfulness or Bitterness. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/bitterness/regretfulness.
Google Ngram Viewer shows how "bitterness" and "regretfulness" have occurred on timeline