110 entries under difficulty topic. ×

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squeeze(noun, predicament, crisis)
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tight corner(noun, expression, mess, jam)
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tight spot(noun, expression, mess, jam)
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toil(trouble, lack, torment, adversity)
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torment(trouble, lack, adversity, privation)
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travail(trouble, lack, torment, adversity)
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turning point(noun, expression, predicament, crisis)
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uphill battle(expression, trouble, lack, torment)
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worry(noun, trouble, want, lack)
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zero hour(noun, expression, predicament, crisis)
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APASmart Define. (2015). rigor thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigor/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigor thesaurus" https://smartdefine.org/rigor/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, rigor thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigor/thesaurus/synonyms>.
MLASmart Define. "rigor thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/rigor/thesaurus/synonyms>