65 entries under problematic topic. ×

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arduous(tough, trying)
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backbreaker(tough, trying)
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burdensome(tough, trying)
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challenging(tough, trying)
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controversial(argumentative, quarrelsome)
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crucial(tough, trying)
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difficile(tough, trying)
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easier said than done(expression, idiom, tough, trying)
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effortful(tough, trying)
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exacting(tough, trying)
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fastidious(tough, grim, trying, troublesome)
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gargantuan(tough, trying)
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grim(tough, trying, troublesome)
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grueling(tough, trying)
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hard-won(tough, trying)
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hard to please(expression, idiom, tough, grim)
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heavy(tough, trying)
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herculean(tough, trying)
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immense(tough, trying)
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labored(tough, trying)
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APASmart Define. (2016). fractious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fractious/thesaurus/synonyms
ChicagoSmart Define. 2016. "fractious thesaurus" https://smartdefine.org/fractious/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, fractious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fractious/thesaurus/synonyms>.
MLASmart Define. "fractious thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/fractious/thesaurus/synonyms>