4
tolling(verb, pricing)
4
wearing(adjective, hard, tough, difficult, heavy)
4
wearying(adjective, heavy, trying, troublesome, exhausting)
3
accusing
3
effortful(adjective, heavy, burdensome)
3
formidable(adjective, hard, tough, severe, rough)
3
galling
3
grueling(adjective, hard, severe, difficult, harsh)
3
gruelling
3
harsh(adjective, hard, rough, difficult, cruel)
3
imposition
3
rigid
3
rigorous(adjective, heavy)
3
stressful(adjective, state, stress, nerve)
3
tasking
3
tax
3
uphill(adjective, hard, severe, rough, difficult)
3
weighting
3
worrisome(adjective, difficult, irritating, troublesome, disorderly)
2
assessing
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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>