107 entries under demanding topic. ×

2
exigent(adjective, hard, tough, severe, heavy)
2
grueling(adjective, hard, tough, severe, harsh)
2
hostile(adjective, hard, evil, rough, nasty)
2
irritable(adjective, tough, rude, unpleasant, negative)
2
slavish(adjective, tough, rough, heavy, awkward)
2
unforgiving(adjective, hostile, exacting)
2
unsparing(adjective, tough, rough, harsh, heavy)
1
easily disgusted(expression, meticulous, fussy, discriminating)
1
fussbudgety(meticulous, fussy, discriminating, exacting)
1
merciless(adjective, tough, severe, rough, harsh)
1
murder(adjective, hard, great, tough, rough)
1
nit-picky(meticulous, fussy, discriminating, exacting)
1
overdelicate(meticulous, fussy, discriminating, exacting)
1
overnice(scrupulous, meticulous, fussy, discriminating)
1
stickling(scrupulous, particular, meticulous, fussy)
1
testing(adjective, tough, unhappy, awkward, grim)
1
thorough(deep, thoughtful, fussy, reflective)
1
turbulent(adjective, hard, severe, rough, irritable)
1
very careful(expression, meticulous, fussy, discriminating)
1
violent(adjective, hard, severe, rough, harsh)
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APASmart Define. (2016). difficult thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/difficult/thesaurus/synonyms
ChicagoSmart Define. 2016. "difficult thesaurus" https://smartdefine.org/difficult/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, difficult thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/difficult/thesaurus/synonyms>.
MLASmart Define. "difficult thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/difficult/thesaurus/synonyms>