8 entries under regret topic. ×

11
repentant(adjective, sad, unhappy, apologetic)
10
penitent(adjective, sad, unhappy, sorrowful)
9
contrite(adjective, sad, unhappy, apologetic)
9
sorry(adjective, sad, informal, unhappy)
8
apologetic(adjective, sad, unhappy, remorse)
8
regretful(adjective, sad, unhappy, apologetic)
8
remorseful(adjective, sad, unhappy, guilty)
7
compunctious(adjective, sad, unhappy, apologetic)
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APASmart Define. (2015). penitential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/penitential/thesaurus/synonyms
ChicagoSmart Define. 2015. "penitential thesaurus" https://smartdefine.org/penitential/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, penitential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/penitential/thesaurus/synonyms>.
MLASmart Define. "penitential thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/penitential/thesaurus/synonyms>