6
wretched(adjective, sad, mournful, grief-stricken, unfavourable)
5
shamefaced(adjective, sad, unhappy, embarrassed, apologetic)
4
adverse
4
distressed(adjective, sadness, morose, aloofness)
4
lamentable(adjective, sad, mournful, grief-stricken, remorseful)
4
shameful
4
unfortunate(adjective, unfavourable)
4
wistful(adjective, melancholy, thoughtful, sentimental, pensive)
4
woeful(adjective, sad, mournful, grief-stricken)
3
afraid
3
blue(adjective, sadness, morose, aloofness)
3
deplorable
3
displeasing
3
distressing(adjective, sad, mournful, grief-stricken)
3
embarrassed
3
frustrated(adjective, penitent)
3
melancholy(adjective, sad, unhappy, terrible, miserable)
3
pitiful(adjective, sad, unhappy, upsetting, deplorable)
3
repining
3
self-reproaching(adjective, penitent)
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APASmart Define. (2015). regretful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/regretful/thesaurus/synonyms
ChicagoSmart Define. 2015. "regretful thesaurus" https://smartdefine.org/regretful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, regretful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/regretful/thesaurus/synonyms>.
MLASmart Define. "regretful thesaurus" 19 June 2015. Web. 25 September 2026. <https://smartdefine.org/regretful/thesaurus/synonyms>