65 entries under problematic topic. ×

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onerous(tough, trying)
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operose(tough, trying)
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painful(tough, trying)
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perverse(adjective, tough, grim, trying)
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problem(tough, trying)
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prohibitive(tough, trying)
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refractory(adjective, tough, grim, trying)
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rigid(adjective, tough, grim, trying)
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rude(adjective, tough, grim, trying)
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severe(tough, trying)
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stiff(tough, trying)
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strenuous(tough, trying)
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testing(tough, trying)
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tiresome(adjective, tough, grim, trying)
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tiring(tough, trying)
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titanic(tough, trying)
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toilsome(tough, trying)
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trying(adjective, tough, grim, troublesome)
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unaccommodating(adjective, tough, difficult, grim, demanding)
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unamenable(adjective, tough, difficult, grim, demanding)
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APASmart Define. (2015). hard to please thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hard_to_please/thesaurus/synonyms
ChicagoSmart Define. 2015. "hard to please thesaurus" https://smartdefine.org/hard_to_please/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, hard to please thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hard_to_please/thesaurus/synonyms>.
MLASmart Define. "hard to please thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/hard_to_please/thesaurus/synonyms>