112 entries under adjective topic. ×

19
disturbing(hard, difficult, complex)
19
operose(hard, difficult, complex)
19
sad(hard, difficult, complex)
18
cruel(hard, difficult, complex)
18
dire(hard, difficult, complex)
18
unbearable(hard, difficult, complex)
13
exacting(hard, tough, severe, rough)
11
onerous(hard, difficult, harsh, heavy)
11
strenuous
9
troublesome(hard, tough, severe, difficult)
8
exigent(hard, difficult, harsh, heavy)
7
tiring(hard, severe, difficult, harsh)
5
exhausting(hard, severe, difficult, heavy)
5
fatiguing(hard, tough, severe, difficult)
4
draining(verb, difficult, demanding, strenuous)
4
heavy
4
wearing(hard, tough, difficult, heavy)
4
wearying(heavy, trying, troublesome, exhausting)
3
effortful(heavy, burdensome)
3
formidable(hard, tough, severe, rough)
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APASmart Define. (2015). taxing thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/taxing/thesaurus/synonyms
ChicagoSmart Define. 2015. "taxing thesaurus" https://smartdefine.org/taxing/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, taxing thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/taxing/thesaurus/synonyms>.
MLASmart Define. "taxing thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/taxing/thesaurus/synonyms>