96 entries under difficult topic. ×

10
wearisome(adjective, dull, tough, severe)
9
exacting(adjective, dull, hard, tough, severe)
9
formidable(adjective, tough, severe, heavy)
9
harsh
8
tiring(adjective, dull, tough, awkward)
8
wearing(adjective, dull, awkward, boring)
6
fatiguing(adjective, dull, awkward, boring)
6
rigorous(adjective, hard, severe, rough)
6
uphill(adjective, tough, severe, awkward)
5
effortful(adjective, tough, severe, rough)
5
exigent(adjective, heavy, troublesome, taxing)
5
grueling(adjective, hard, tough, severe)
3
awkward(adjective, big, heavy, substantial)
2
Herculean(adjective, tough, severe, awkward)
2
adverse(adjective, adverse)
2
challenging(adjective, tough, severe, awkward)
2
finicky(adjective, tough, harsh, rigid)
2
fussy(adjective, tough, harsh, rigid)
2
labored(adjective, hard, tough, severe, rough)
2
stiff(adjective, tough, severe, painful)
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APASmart Define. (2015). burdensome thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/burdensome/thesaurus/synonyms
ChicagoSmart Define. 2015. "burdensome thesaurus" https://smartdefine.org/burdensome/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, burdensome thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/burdensome/thesaurus/synonyms>.
MLASmart Define. "burdensome thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/burdensome/thesaurus/synonyms>