102 entries under difficult topic. ×

3
fussy(adjective, hard, tough, harsh)
3
labored(adjective, hard, great, tough, rough)
3
thorny
3
tight
2
Herculean(adjective, tough, severe, awkward)
2
adverse
2
awkward(adjective, heavy, demanding, weighty)
2
challenging(adjective, hard, great, tough, severe)
2
contrary
2
disturbing(adjective, hard, severe, offensive)
2
grave
2
pressing
2
stiff(adjective, tough, severe, painful)
2
superincumbent(heavy, cruel, demanding, troublesome)
2
worrisome(adjective, hard, severe, offensive)
2
worrying(adjective, hard, severe, offensive)
1
ambitious(hard, tough, severe, painful)
1
austere
1
backbreaker(hard, tough, severe, painful)
1
difficile(adjective, tough, severe, rough)
11 years ago|15k views|share |citing 
APASmart Define. (2015). onerous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms
ChicagoSmart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, onerous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>.
MLASmart Define. "onerous thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms>