30 entries under demanding topic. ×

2
worrying(adjective, difficult, heavy, irritating)
1
challenging(adjective, hard, tough, difficult, complex)
1
crushing(severe, difficult, harsh, heavy, painful)
1
testing(adjective, tough, severe, difficult, violent)
0
enervating(adjective, difficult, strenuous, trying)
0
grim(adjective, harsh, cruel, brutal, strict)
0
hostile(adjective, exacting)
0
sapping(adjective, difficult, strenuous, trying)
0
uncharitable(adjective, exacting)
0
unforgiving(adjective, severe, violent, exacting)
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APASmart Define. (2015). taxing thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/taxing/thesaurus/synonyms
ChicagoSmart Define. 2015. "taxing thesaurus" https://smartdefine.org/taxing/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, taxing thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/taxing/thesaurus/synonyms>.
MLASmart Define. "taxing thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/taxing/thesaurus/synonyms>