132 entries under dull topic. ×

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along for the ride(expression, adjective, idiom, calm)
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bored(adjective, indifferent, unconcerned, sluggish)
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deadpan(adjective, calm, flat, unemotional)
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dense(adjective, heavy, stupid, impassive)
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doltish(adjective, heavy, stupid, impassive)
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dry(adjective, calm, tolerant, impassive)
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dumb(adjective, heavy, stupid, impassive)
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lackluster(adjective, weary, stiff, tired)
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lumpish(adjective, heavy, stupid, impassive)
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obtuse(adjective, heavy, stupid, impassive)
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unexcitable(adjective, calm, flat, impassive)
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unexciting(adjective, uninteresting)
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APASmart Define. (2016). passive thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/passive/thesaurus/synonyms
ChicagoSmart Define. 2016. "passive thesaurus" https://smartdefine.org/passive/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, passive thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/passive/thesaurus/synonyms>.
MLASmart Define. "passive thesaurus" 10 February 2016. Web. 26 September 2026. <https://smartdefine.org/passive/thesaurus/synonyms>