2
attacking
2
challenging
2
contradicting
2
contravening(verb, bad, weak, gloomy)
2
denying(verb, bad, weak, gloomy)
2
disproving
2
disputing
2
impeaching
2
opposing(adjective, bad, weak, gloomy)
2
refuting
1
abrogating(bad, weak, gloomy)
1
against(bad, weak, gloomy)
1
annulling(bad, weak, gloomy)
1
antagonistic(bad, weak, gloomy)
1
anti(bad, weak, gloomy)
1
assailing
1
colorless(bad, weak, gloomy)
1
con(bad, weak, gloomy)
1
confuting
1
contesting
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APASmart Define. (2013). impugning thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impugning/thesaurus/synonyms
ChicagoSmart Define. 2013. "impugning thesaurus" https://smartdefine.org/impugning/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, impugning thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impugning/thesaurus/synonyms>.
MLASmart Define. "impugning thesaurus" 19 May 2013. Web. 22 September 2026. <https://smartdefine.org/impugning/thesaurus/synonyms>