72 entries under difficult topic. ×

1
superincumbent(cruel, troublesome, domineering, tyrannical)
1
terrible(adjective, tough, rough, heavy)
1
unsparing(adjective, tough, rough, heavy)
1
uphill battle(expression, adjective, tough, rough)
1
wearing(adjective, hard, tough, rough)
1
wearying(adjective, tough, rough, heavy)
0
challenging(adjective, awkward, demanding, strenuous)
0
problematical(adjective, awkward, demanding, grueling)
0
testing(adjective, awkward, demanding, strenuous)
0
worrisome
0
worrying
-1
awkward(adjective, demanding, grueling, problematical)
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APASmart Define. (2015). backbreaking thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/backbreaking/thesaurus/synonyms
ChicagoSmart Define. 2015. "backbreaking thesaurus" https://smartdefine.org/backbreaking/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, backbreaking thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/backbreaking/thesaurus/synonyms>.
MLASmart Define. "backbreaking thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/backbreaking/thesaurus/synonyms>