2
against(adjective, preposition, bad, weak, gloomy)
2
alien(adjective, mean, bad, nasty, disgusting)
2
allergic(mean, nasty, hostile, unfriendly, antagonistic)
2
antipodal(adjective, negative, reverse, hostile, inappropriate)
2
antithetic(antagonistic, contrary, incompatible, inconsistent, self-contradictory)
2
antonymous(hostile, contrary, opposing)
2
apocalyptic(adjective, evil, nasty, threatening, disturbing)
2
argumentative(adjective, mean, nasty, hostile, unfriendly)
2
at cross-purposes(expression, hostile, contrary, opposing)
2
burdensome(adjective, difficult)
2
cantankerous(adjective, difficult)
2
clashing(negative, hostile, different, antagonistic, contrary)
2
cold(adjective, person, mean, nasty, unfriendly)
2
competitive(adjective, mean, nasty, unfriendly, hateful)
2
con(antagonistic, contrary, incompatible, inconsistent, self-contradictory)
2
contentious(adjective, mean, nasty, unfriendly, hateful)
2
contrapositive(adjective, reverse, antagonistic, contrary, conflicting)
2
contrast(noun, difference, distinction, dissimilarity, oppositeness)
2
contrasted
2
converse(negative, hostile, different, antagonistic, contrary)
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APASmart Define. (2016). adverse thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/adverse/thesaurus/synonyms
ChicagoSmart Define. 2016. "adverse thesaurus" https://smartdefine.org/adverse/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, adverse thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/adverse/thesaurus/synonyms>.
MLASmart Define. "adverse thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/adverse/thesaurus/synonyms>