22
sad(adjective, wrong, happy, dark, sorrow)
21
lamentable(adjective, wrong, happy, sad, sorrow)
20
deplorable(adjective, wrong, happy, sad, sorrow)
18
unfortunate(adjective, bad, sad, dark, sorrow)
17
woeful(adjective, wrong, happy, sad, dark)
15
distressing(adjective, wrong, miserable, inadequate, wretched)
12
grievous(adjective, wrong, happy, sad, sorrow)
12
pitiful(adjective, wrong, distressing, upsetting, unfortunate)
11
dolorous(adjective, happy, sad, dark, sorrow)
11
unhappy(adjective, wrong, sad, dark, sorrow)
9
disappointing(adjective, wrong, sad, dark, sorrow)
9
dreadful(adjective, wrong, awful, terrible, upsetting)
9
pathetic(adjective, sad, dark, sorrow, depression)
8
miserable(adjective, sad, sorrow, depression, woe)
8
mournful(adjective, happy, sad, sorrow, depression)
8
sorrowful(adjective, happy, sad, sorrow, depression)
7
awful(adjective, terrible, ominous)
7
calamitous(adjective, wrong, miserable, wretched, unfortunate)
7
lugubrious(adjective, sad, dark, sorrow, depression)
7
rueful(adjective, happy, sad, sorrow, depression)
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APASmart Define. (2015). regrettable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/regrettable/thesaurus/synonyms
ChicagoSmart Define. 2015. "regrettable thesaurus" https://smartdefine.org/regrettable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, regrettable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/regrettable/thesaurus/synonyms>.
MLASmart Define. "regrettable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/regrettable/thesaurus/synonyms>