5
regressed(verb, deteriorated, reverted)
4
declined(verb, adjective, deteriorated)
4
degenerated(verb, deteriorated)
4
deteriorated(verb, adjective, deteriorated)
4
relapsed(verb, deteriorated, reverted)
4
reverted(verb, deteriorated, reverted)
3
decayed(verb, adjective, deteriorated)
3
lapsed(verb, deteriorated)
2
atrophied(verb, adjective, deteriorated)
2
dilapidated(verb, adjective, deteriorated)
2
downgraded(verb, adjective, deteriorated)
2
mouldered(verb, deteriorated)
2
putrefied(verb, adjective, deteriorated)
2
receded
2
retreated
2
retrograded
2
returned(verb, reverted)
2
reversed(verb, reverted)
2
slumped(verb, deteriorated)
2
worsened(verb, deteriorated)
13 years ago|1.6k views|share |citing 
APASmart Define. (2013). retrogressed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/retrogressed/thesaurus/synonyms
ChicagoSmart Define. 2013. "retrogressed thesaurus" https://smartdefine.org/retrogressed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, retrogressed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/retrogressed/thesaurus/synonyms>.
MLASmart Define. "retrogressed thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/retrogressed/thesaurus/synonyms>