114 entries under difficult topic. ×

11
exacting(adjective, dull, hard, tough, severe)
10
grueling(adjective, hard, tough, severe)
10
tiresome(adjective, dull, hard, heavy)
9
strained(adjective, hard, exertion)
8
effortful(adjective, hard, great, tough, rough)
8
wearing(adjective, dull, hard, awkward)
7
forced(adjective, hard)
7
labored(adjective, hard, great, tough, rough)
7
tedious(adjective, dull, hard, tender)
6
Herculean(adjective, strong, hard, tough, severe)
6
rigorous(adjective, hard, tough, severe, rough)
6
ticklish
4
cumbersome
4
fussy(adjective, tough, problematic, trying)
4
harsh
4
irksome(adjective, dull, difficulty, awkward)
3
awkward(adjective, heavy, demanding, weighty)
3
bothersome(adjective, tough, severe, awkward)
3
cantankerous
3
challenging(adjective, great, tough, severe)
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APASmart Define. (2016). laborious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/laborious/thesaurus/synonyms
ChicagoSmart Define. 2016. "laborious thesaurus" https://smartdefine.org/laborious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, laborious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/laborious/thesaurus/synonyms>.
MLASmart Define. "laborious thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/laborious/thesaurus/synonyms>