124 entries under adjective topic. ×

6
knotty(hard, tough, severe, rough)
5
ascending(adverb, rising, climbing)
5
demanding(hard, tough, severe, rough)
5
labored(hard, great, tough, difficult)
5
rough(hard, great, tough, difficult)
5
severe(hard, tough, difficult, violent)
4
exhausting(hard, rough, difficult, heavy)
4
grueling(hard, tough, difficult, awkward)
4
operose(tough, severe, rough, difficult)
4
rigorous(hard, tough, severe, rough)
4
tricky(tough, difficult, complex, awkward)
4
wearying(tough, rough, difficult, heavy)
3
complex
3
exacting(tough, severe, rough, difficult)
3
grinding(tough, rough, difficult, heavy)
3
heavy(tough, severe, rough, difficult)
3
oppressive
3
powerful
3
skyward(adverb, preposition, up, rising)
3
taxing(hard, severe, rough, difficult)
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APASmart Define. (2015). uphill thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/uphill/thesaurus/synonyms
ChicagoSmart Define. 2015. "uphill thesaurus" https://smartdefine.org/uphill/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, uphill thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/uphill/thesaurus/synonyms>.
MLASmart Define. "uphill thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/uphill/thesaurus/synonyms>