92 entries under tough topic. ×

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bothersome(problematic, trying)
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burdensome(harsh, rigid, strict, thorough)
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challenging(thorough, demanding, problematic, trying)
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crucial(problematic, trying)
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difficile(problematic, trying)
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dour(adjective, severe, firm, harsh)
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easier said than done(expression, idiom, problematic, trying)
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effortful(problematic, trying)
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firm(adjective, severe, harsh, rigid)
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fractious(problematic, trying)
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galling(problematic, trying)
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gargantuan(problematic, trying)
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grueling(problematic, trying)
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hard-boiled(adjective, severe, firm, harsh)
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hard-won(problematic, trying)
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heavy(problematic, trying)
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herculean(problematic, trying)
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immense(problematic, trying)
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impolite(problematic, trying)
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intractable(problematic, trying)
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APASmart Define. (2015). picky thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/picky/thesaurus/synonyms
ChicagoSmart Define. 2015. "picky thesaurus" https://smartdefine.org/picky/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, picky thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/picky/thesaurus/synonyms>.
MLASmart Define. "picky thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/picky/thesaurus/synonyms>