30 entries under hard topic. ×

3
uphill(adjective, tough, difficult, awkward)
2
demanding(adjective, tough, severe, difficult)
2
rough(adjective, tough, difficult, awkward)
2
taxing(adjective, severe, difficult, harsh)
1
wearisome(adjective, tough, difficult, awkward)
1
formidable(adjective, tough, severe, difficult)
1
rigorous(adjective, tough, severe, difficult)
0
murder(adjective, tough, difficult, awkward)
0
rugged(adjective, difficult, awkward, demanding)
-1
no picnic(expression, tough, difficult, problematic)
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APASmart Define. (2015). grueling thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/grueling/thesaurus/synonyms
ChicagoSmart Define. 2015. "grueling thesaurus" https://smartdefine.org/grueling/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, grueling thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/grueling/thesaurus/synonyms>.
MLASmart Define. "grueling thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/grueling/thesaurus/synonyms>