63 entries under problematic topic. ×

6
unyielding(adjective, hard, tough, easy, severe)
5
uphill(adjective, hard, tough, severe, rough)
4
effortful(adjective, tough, severe, difficult, harsh)
4
heavy(adjective, dull, tough, severe, rough)
4
painful(hard, tough, severe, difficult, harsh)
4
tiring(adjective, dull, tough, difficult, full)
3
ambitious(adjective, hard, tough, severe, ability)
3
difficile(adjective, tough, severe, rough, difficult)
3
intractable(adjective, tough, persistent, obstinate)
3
wearisome(adjective, dull, tough, severe, difficult)
2
fractious(tough, trying)
2
grueling(adjective, hard, tough, severe, difficult)
2
herculean(adjective, tough, severe, rough, difficult)
2
intricate(adjective, hard, tough, severe, difficult)
2
irritable(adjective, tough, severe, keen, cross)
2
irritating(adjective, dull, tough, severe, boring)
2
not easy(expression, tough, severe, painful)
2
operose(adjective, tough, severe, rough, difficult)
2
refractory(adjective, tough, persistent, obstinate)
2
stiff(adjective, hard, tough, severe, rough)
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APASmart Define. (2015). demanding thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/demanding/thesaurus/synonyms
ChicagoSmart Define. 2015. "demanding thesaurus" https://smartdefine.org/demanding/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
MLASmart Define. "demanding thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/demanding/thesaurus/synonyms>