48 entries under difficult topic. ×

2
stiff(adjective, hard, severe, harsh)
2
superincumbent(heavy, cruel, demanding, troublesome)
2
worrying(adjective, heavy, demanding, irritating)
1
challenging(adjective, hard, tough, complex)
1
crushing(severe, harsh, heavy, painful)
1
testing(adjective, tough, severe, violent)
0
enervating(adjective, demanding, strenuous, trying)
0
sapping(adjective, demanding, strenuous, trying)
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APASmart Define. (2015). taxing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/taxing/thesaurus/synonyms
ChicagoSmart Define. 2015. "taxing thesaurus" https://smartdefine.org/taxing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, taxing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/taxing/thesaurus/synonyms>.
MLASmart Define. "taxing thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/taxing/thesaurus/synonyms>