10 entries under unfortunately topic. ×

12
alas(adverb, unhappily, unluckily, with sadness)
11
sadly(adverb, gloomily, miserably, alas)
11
unluckily(adverb, gloomily, miserably, unhappily)
9
lamentably(adverb, gloomily, miserably, by bad luck)
8
unhappily(adverb, gloomily, miserably, drearily)
1
fatefully
0
as luck would have it(expression, idiom, adverb)
0
haplessly
0
inauspiciously
0
ominously(adverb, darkly, threateningly)
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APASmart Define. (2015). regrettably thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/regrettably/thesaurus/synonyms
ChicagoSmart Define. 2015. "regrettably thesaurus" https://smartdefine.org/regrettably/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, regrettably thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/regrettably/thesaurus/synonyms>.
MLASmart Define. "regrettably thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/regrettably/thesaurus/synonyms>