68 entries under decline topic. ×

1
fade(verb, weaken, degenerate, deteriorate)
1
fail(verb, weaken, degenerate, deteriorate)
1
fall apart(verb, expression, degenerate, degrade)
1
flag(verb, weaken, degenerate, deteriorate)
1
get worse(verb, expression, weaken, wane)
1
go downhill(verb, expression, fail, lower)
1
go to pieces(verb, expression, idiom, weaken)
1
go to pot(verb, expression, idiom, fail)
1
go to the dogs(verb, expression, idiom, fail)
1
hit the skids(verb, expression, idiom, fail)
1
impair(verb, weaken, degenerate, deteriorate)
1
injure(verb, weaken, degenerate, deteriorate)
1
languish(verb, weaken, degenerate, deteriorate)
1
lapse(verb, weaken, degenerate, deteriorate)
1
lessen(verb, weaken, degenerate, deteriorate)
1
lose it(verb, expression, phrasal verb, fail)
1
lose quality(verb, expression, fail, lower)
1
lower(verb, weaken, degenerate, deteriorate)
1
mar(verb, weaken, degenerate, deteriorate)
1
pervert(verb, weaken, degenerate, deteriorate)
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APASmart Define. (2015). become worse thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/become_worse/thesaurus/synonyms
ChicagoSmart Define. 2015. "become worse thesaurus" https://smartdefine.org/become_worse/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, become worse thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/become_worse/thesaurus/synonyms>.
MLASmart Define. "become worse thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/become_worse/thesaurus/synonyms>