6
badly
4
harmfully
4
ill
3
bad
3
detrimentally(adverb, hurtfully)
2
adversely
2
hurtfully(adverb, destructively)
2
poorly
2
unfavorably
2
unfavourably
1
contrarily
1
damagingly
1
deleteriously
1
destructively
1
diseased
1
gravely
1
inconveniently
1
inexpediently
1
infirm
1
inimically
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APASmart Define. (2016). disadvantageously thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/disadvantageously/thesaurus/synonyms
ChicagoSmart Define. 2016. "disadvantageously thesaurus" https://smartdefine.org/disadvantageously/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, disadvantageously thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/disadvantageously/thesaurus/synonyms>.
MLASmart Define. "disadvantageously thesaurus" 26 March 2016. Web. 21 September 2026. <https://smartdefine.org/disadvantageously/thesaurus/synonyms>