35 entries under rough topic. ×

40
formidable(adjective, feature, characteristic, tough, severe)
6
difficult(adjective, hard, tough, difficulty)
3
troublesome(adjective, tough, severe, difficulty)
2
backbreaking(adjective, strong, hard, difficult)
2
demanding(adjective, tough, severe, difficult)
2
exacting(adjective, tough, severe, difficult)
2
exhausting(adjective, tough, difficult, heavy)
2
severe(adjective, tough, difficult, heavy)
2
tiring(adjective, tough, difficult, heavy)
2
wearying(adjective, tough, difficult, heavy)
1
bothersome(adjective, tough, severe, difficult)
1
difficile(adjective, tough, severe, difficult)
1
fatiguing(adjective, hard, tough, difficult)
1
intricate(adjective, tough, severe, difficult)
1
irksome(adjective, tough, difficulty, difficult)
1
mean(adjective, tough, difficult, heavy)
1
rugged(adjective, strong, tough, difficult)
1
toilful(adjective, tough, difficult, heavy)
1
wearing(adjective, hard, tough, difficult)
0
complicated(adjective, tough, difficult, heavy)
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APASmart Define. (2013). herculean thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/herculean/thesaurus/synonyms
ChicagoSmart Define. 2013. "herculean thesaurus" https://smartdefine.org/herculean/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, herculean thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/herculean/thesaurus/synonyms>.
MLASmart Define. "herculean thesaurus" 28 June 2013. Web. 29 September 2026. <https://smartdefine.org/herculean/thesaurus/synonyms>