54 entries under grueling topic. ×

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bothersome(adjective, difficult, awkward, demanding)
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burdensome(adjective, difficult, awkward, demanding)
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demanding(adjective, difficult, awkward)
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difficile(adjective, difficult, awkward, demanding)
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distressing(adjective, difficult, awkward, demanding)
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exacting(adjective, difficult, awkward, demanding)
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exhausting(adjective, difficult, awkward, demanding)
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fatiguing(adjective, difficult, awkward, demanding)
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grinding(adjective, difficult, awkward, demanding)
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heavy(adjective, difficult, awkward, demanding)
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herculean(adjective, difficult, awkward, demanding)
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irksome(adjective, difficult, awkward, demanding)
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labored(adjective, difficult, awkward, demanding)
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laborious(adjective, difficult, awkward, demanding)
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mean(adjective, difficult, awkward, demanding)
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merciless(adjective, difficult, awkward, demanding)
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murder(adjective, difficult, awkward, demanding)
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onerous(adjective, difficult, awkward, demanding)
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operose(adjective, difficult, awkward, demanding)
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rigorous(adjective, difficult, awkward, demanding)
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APASmart Define. (2015). problematical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>