23
sorrowfully(adverb, regretfully)
17
sadly
9
regretfully(adverb, regretfully)
9
sorrily
8
contritely(adverb, regretfully)
6
unhappily
4
grievously
4
mournfully(adverb, regretfully)
4
remorsefully(adverb, regretfully)
3
lamentably(adverb, regretfully)
3
lugubriously
3
painfully
2
woefully
2
unfortunately
1
penitently(adverb, regretfully)
1
plaintively
1
agonizingly
1
dismally
1
distressingly
1
dolefully
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APASmart Define. (2015). ruefully thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ruefully/thesaurus/synonyms
ChicagoSmart Define. 2015. "ruefully thesaurus" https://smartdefine.org/ruefully/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, ruefully thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ruefully/thesaurus/synonyms>.
MLASmart Define. "ruefully thesaurus" 29 October 2015. Web. 20 September 2026. <https://smartdefine.org/ruefully/thesaurus/synonyms>