11
harmful(adjective, harm, negative, injury, injurious)
10
injurious(adjective, harm, negative, injury)
9
hurting(adjective, harm, negative, injury, injurious)
9
hurtful(adjective, harm, negative, injury)
6
damaging(adjective, harm, negative, injury)
6
dangerous(adjective, harm, negative, injury)
6
destructive(adjective, harm, negative, injury)
6
painful(adjective, harm, negative, injury)
5
adverse(adjective, harm, negative, injury)
5
bad(adjective, harm, negative, injury)
5
baneful(adjective, harm, negative, injury)
5
deleterious(adjective, harm, negative, injury)
5
detrimental(adjective, harm, negative, injury)
5
disadvantageous(adjective, harm, negative, injury)
5
evil(adjective, harm, negative, injury)
5
mischievous(adjective, harm, negative, injury)
5
nocuous(adjective, harm, negative, injury)
5
noxious(adjective, harm, negative, injury)
5
operative(adjective, medicine, operation, surgery)
5
pernicious(adjective, harm, negative, injury)
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APASmart Define. (2015). medical thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/medical/thesaurus/antonyms
ChicagoSmart Define. 2015. "medical thesaurus" https://smartdefine.org/medical/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, medical thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/medical/thesaurus/antonyms>.
MLASmart Define. "medical thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/medical/thesaurus/antonyms>