7
powerful
3
going up
3
uphill(adjective, difficult, laborious)
1
future-proof
1
stiff
1
up
0
abstruse
0
acclivity
0
acclivous
0
arduous
0
ascending
0
ascent
0
burdensome
0
climbing
0
complex
0
complicated
0
crocked
0
demanding
0
difficult
0
exacting
10 years ago|741 views|share |citing 
APASmart Define. (2016). downhill thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/downhill/thesaurus/antonyms
ChicagoSmart Define. 2016. "downhill thesaurus" https://smartdefine.org/downhill/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, downhill thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/downhill/thesaurus/antonyms>.
MLASmart Define. "downhill thesaurus" 11 January 2016. Web. 23 September 2026. <https://smartdefine.org/downhill/thesaurus/antonyms>