66 entries under tough topic. ×

2
difficult(adjective, hard, problematic, trying)
2
titanic(adjective, severe, painful, problematic)
1
ambitious(adjective, hard, severe, difficult)
1
arduous(adjective, hard, severe, difficult)
1
bothersome(adjective, hard, severe, difficult)
1
burdensome(adjective, severe, painful, problematic)
1
challenging(adjective, hard, severe, difficult)
1
crucial(adjective, severe, painful, problematic)
1
demanding(adjective, hard, severe, difficult)
1
difficile(adjective, severe, painful, problematic)
1
easier said than done(expression, adjective, severe, painful)
1
effortful(adjective, severe, painful, problematic)
1
exacting(adjective, hard, severe, difficult)
1
galling(adjective, severe, painful, problematic)
1
gargantuan(adjective, severe, painful, problematic)
1
grim(adjective, problematic, trying)
1
grueling(adjective, problematic, trying)
1
hard(noun, adjective, work, difficult)
1
hard-won(adjective, severe, painful, problematic)
1
heavy(adjective, severe, painful, problematic)
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APASmart Define. (2015). backbreaker thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/backbreaker/thesaurus/synonyms
ChicagoSmart Define. 2015. "backbreaker thesaurus" https://smartdefine.org/backbreaker/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, backbreaker thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/backbreaker/thesaurus/synonyms>.
MLASmart Define. "backbreaker thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/backbreaker/thesaurus/synonyms>