66 entries under adjective topic. ×

2
difficult(hard, tough, problematic, trying)
2
titanic(tough, severe, painful, problematic)
1
ambitious(hard, tough, severe, difficult)
1
arduous(hard, tough, severe, difficult)
1
bothersome(hard, tough, severe, difficult)
1
burdensome(tough, severe, painful, problematic)
1
challenging(hard, tough, severe, difficult)
1
crucial(tough, severe, painful, problematic)
1
demanding(hard, tough, severe, difficult)
1
difficile(tough, severe, painful, problematic)
1
easier said than done(expression, tough, severe, painful)
1
effortful(tough, severe, painful, problematic)
1
exacting(hard, tough, severe, difficult)
1
exhausting
1
exigent
1
galling(tough, severe, painful, problematic)
1
gargantuan(tough, severe, painful, problematic)
1
grievous
1
grim(tough, problematic, trying)
1
grueling(tough, problematic, trying)
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APASmart Define. (2015). backbreaker thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/backbreaker/thesaurus/synonyms
ChicagoSmart Define. 2015. "backbreaker thesaurus" https://smartdefine.org/backbreaker/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, backbreaker thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/backbreaker/thesaurus/synonyms>.
MLASmart Define. "backbreaker thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/backbreaker/thesaurus/synonyms>