1
slope
1
slopeways
1
slopingly
1
slumping(adjective, inferior, depressed, declining, downward)
1
subjacent(adjective, inferior, depressed, declining, downward)
1
submerging
1
subsiding
1
supine
1
talus(noun, obliquity)
1
tipsily
1
to the bottom(expression, adjective, idiom, inferior, depressed)
1
tottering
1
tumbledown
1
underneath(adjective, inferior, depressed, declining, downward)
1
upgrade
1
uphill
1
wane
0
abrupt
0
abruptness
0
acclivous
10 years ago|3.2k views|share |citing 
APASmart Define. (2016). downhill thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/downhill/thesaurus/synonyms
ChicagoSmart Define. 2016. "downhill thesaurus" https://smartdefine.org/downhill/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, downhill thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/downhill/thesaurus/synonyms>.
MLASmart Define. "downhill thesaurus" 11 January 2016. Web. 24 September 2026. <https://smartdefine.org/downhill/thesaurus/synonyms>