70 entries under problematic topic. ×

4
intricate(adjective, tough, severe, difficult, awkward)
4
painful(adjective, tough, severe, harsh, heavy)
4
toilsome(adjective, tough, severe, difficult, harsh)
4
unyielding(adjective, tough, easy, severe, painful)
3
effortful(adjective, tough, severe, difficult, harsh)
3
hard to please(expression, adjective, idiom, tough, rough)
3
intractable(adjective, tough, persistent, obstinate)
3
troublesome(adjective, hard, tough, severe, difficult)
3
uphill(adjective, tough, severe, rough, difficult)
2
ambitious(adjective, hard, tough, severe, ability)
2
challenging(adjective, hard, tough, severe, difficult)
2
difficile(adjective, tough, severe, rough, difficult)
2
grueling(adjective, tough, severe, difficult, harsh)
2
herculean(adjective, tough, severe, rough, difficult)
2
not easy(expression, tough, severe, painful)
2
operose(adjective, tough, severe, rough, difficult)
2
prohibitive(tough, severe, painful, trying)
2
refractory(adjective, tough, persistent, obstinate)
2
testing(adjective, tough, severe, difficult, violent)
2
titanic(tough, severe, painful, trying)
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APASmart Define. (2016). exacting thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/exacting/thesaurus/synonyms
ChicagoSmart Define. 2016. "exacting thesaurus" https://smartdefine.org/exacting/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, exacting thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/exacting/thesaurus/synonyms>.
MLASmart Define. "exacting thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/exacting/thesaurus/synonyms>