164 entries under difficult topic. ×

3
difficile(adjective, tough, severe, rough)
3
importunate(adjective, hard, tough, firm)
3
intense(adjective, severe, strenuous, stressful)
3
pressing(verb, adjective, hard, tough, firm)
3
querulous(adjective, hard, tough, annoyed)
3
tall(adjective, hard, unreasonable, exaggerated)
3
wearisome(adjective, dull, tough, severe)
2
affecting(verb, strenuous, stressful)
2
cumbersome
2
distressing(adjective, tough, severe, rough)
2
exorbitant
2
fatiguing(adjective, dull, awkward, boring)
2
grievous(adjective, hard, tough, harsh)
2
grinding(adjective, rough, harsh, heavy)
2
grueling(adjective, hard, tough, severe)
2
hairy(adjective, hard, tough, severe, rough)
2
herculean(adjective, tough, severe, rough)
2
intricate(adjective, hard, tough, severe)
2
merciless(adjective, tough, severe, rough)
2
operose(adjective, tough, severe, rough)
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APASmart Define. (2015). demanding thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/demanding/thesaurus/synonyms
ChicagoSmart Define. 2015. "demanding thesaurus" https://smartdefine.org/demanding/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
MLASmart Define. "demanding thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/demanding/thesaurus/synonyms>