69 entries under dreadful topic. ×

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low(adjective, unpleasant, awful, terrible, disgusting)
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low-down(adjective, unpleasant, horrible, disagreeable)
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major(adjective, unpleasant, horrible, disagreeable)
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malevolent(adjective, unpleasant, horrible, disagreeable)
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mean(adjective, unpleasant, horrible, ill, sick)
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menacing(adjective, unpleasant, horrible, disagreeable)
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messy(adjective, unpleasant, horrible, disagreeable)
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morose(adjective, unpleasant, horrible, disagreeable)
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ominous(adjective, unpleasant, horrible, disagreeable)
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pesky(adjective, unpleasant, horrible, disagreeable)
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pugnacious(adjective, unpleasant, horrible, disagreeable)
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quarrelsome(adjective, unpleasant, horrible, disagreeable)
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saturnine(adjective, unpleasant, horrible, disagreeable)
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scowling(adjective, unpleasant, horrible, disagreeable)
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serious(adjective, unpleasant, horrible, disagreeable)
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servile(adjective, unpleasant, horrible, disagreeable)
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sinister(adjective, unpleasant, horrible, disagreeable)
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sorry(adjective, unpleasant, horrible, disagreeable)
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spiteful(adjective, unpleasant, horrible, disagreeable)
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sullen(adjective, unpleasant, horrible, disagreeable)
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APASmart Define. (2015). nauseous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/nauseous/thesaurus/synonyms
ChicagoSmart Define. 2015. "nauseous thesaurus" https://smartdefine.org/nauseous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, nauseous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/nauseous/thesaurus/synonyms>.
MLASmart Define. "nauseous thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/nauseous/thesaurus/synonyms>