10 entries under regretfully topic. ×

7
repentantly(adverb, remorsefully)
6
contritely(adverb, remorsefully, repentantly)
6
regretfully(adverb, remorsefully, repentantly)
6
remorsefully(adverb, repentantly)
4
ruefully(adverb, remorsefully, repentantly)
3
sorrowfully(adverb, repentantly)
1
grievingly
1
lamentably
1
mournfully
1
shamefully
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APASmart Define. (2015). penitently thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/penitently/thesaurus/synonyms
ChicagoSmart Define. 2015. "penitently thesaurus" https://smartdefine.org/penitently/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, penitently thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/penitently/thesaurus/synonyms>.
MLASmart Define. "penitently thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/penitently/thesaurus/synonyms>