10
unfavorably(adverb, negatively, critically, ominously, disapprovingly)
8
detrimentally
8
inauspiciously(adverb, ominously, unpromisingly)
7
harshly(adverb, negatively, difficultly)
7
unfortunately
6
unluckily
6
antipathetically
6
badly(adverb, harmfully, unfavorably)
4
calamitously
4
contrarily(adverb, difficultly)
4
disastrously
4
distressfully
4
negatively(adverb, separately, otherwise, individually, inversely)
4
troublesomely(adverb, difficultly)
4
unhappily
4
unpropitiously
3
difficultly(adverb, difficultly)
3
antagonistically(adverb, negatively)
3
catastrophically
3
conflictingly(adverb, negatively, exceptionally, distinctly, separately)
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APASmart Define. (2016). adversely thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/adversely/thesaurus/synonyms
ChicagoSmart Define. 2016. "adversely thesaurus" https://smartdefine.org/adversely/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, adversely thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/adversely/thesaurus/synonyms>.
MLASmart Define. "adversely thesaurus" 26 March 2016. Web. 20 September 2026. <https://smartdefine.org/adversely/thesaurus/synonyms>