576 entries under verb topic. ×

3
decay(break, change, quality, bad)
3
decrease(noun, stop, drop, decline)
3
degenerate(health, quality, bad, low)
3
demoralize(hurt, damage, harm, clean)
3
devastate(health, help, plan, destroy)
3
disimprove(health, quality, bad, hurt)
3
dwindle(health, quality, bad, increase)
3
endamage(bad, damage, harm, regress)
3
escalate(hurt, damage, harm, bad action)
3
exasperate(bad, damage, harm, get worse)
3
reduce(stop, drop, fix, decline)
3
regress(noun, hurt, damage, progress)
3
retrogress(health, stop, drop, quality)
3
sink(health, develop, plan, harm)
3
taint(break, change, fix, bad)
3
vanquish(press, influence, scare)
2
ruin(stop, drop, bad, decline)
2
abase(hurt, raise, respect, damage)
2
adulterate(quality, separate, clean, purify)
2
altered(bad, low, deterioration)
10 years ago|4.8k views|share |citing 
APASmart Define. (2016). improve thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/improve/thesaurus/antonyms
ChicagoSmart Define. 2016. "improve thesaurus" https://smartdefine.org/improve/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, improve thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/improve/thesaurus/antonyms>.
MLASmart Define. "improve thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/improve/thesaurus/antonyms>