122 entries under dreadful topic. ×

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treacherous(adjective, evil, unpleasant, wicked, immoral)
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vexatious(adjective, unpleasant, disagreeable, obnoxious)
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bellicose(adjective, unpleasant, disagreeable, obnoxious)
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cantankerous(adjective, unpleasant, disagreeable, obnoxious)
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crabbed(adjective, unpleasant, disagreeable, obnoxious)
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crabby(adjective, unpleasant, disagreeable, obnoxious)
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glum(adjective, evil, unpleasant, disagreeable, mysterious)
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major(adjective, unpleasant, disagreeable, obnoxious)
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messy(adjective, unpleasant, disagreeable, obnoxious)
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pugnacious(adjective, unpleasant, disagreeable, obnoxious)
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quarrelsome(adjective, unpleasant, disagreeable, obnoxious)
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raunchy(offensive, unpleasant, terrible, shocking, indecent)
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saturnine(adjective, unpleasant, disagreeable, obnoxious)
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scowling(adjective, evil, unpleasant, awful, terrible)
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serious(adjective, severe, intense, unpleasant, extreme)
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servile(adjective, unpleasant, miserable, disagreeable, wretched)
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sorry(adjective, unpleasant, disagreeable, obnoxious)
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spiteful(adjective, mean, unpleasant, terrible, vicious)
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stupefying(awful, wonderful, amazing, grand, splendid)
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sublime(awful, terrible)
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APASmart Define. (2016). horrible thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/horrible/thesaurus/synonyms
ChicagoSmart Define. 2016. "horrible thesaurus" https://smartdefine.org/horrible/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, horrible thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/horrible/thesaurus/synonyms>.
MLASmart Define. "horrible thesaurus" 3 April 2016. Web. 28 September 2026. <https://smartdefine.org/horrible/thesaurus/synonyms>