80 entries under weaken topic. ×

1
become worse(verb, expression, decline, fail, lower)
1
debilitate(decline, degenerate, deteriorate, degrade)
1
degrade(verb, decline, ruin, fail, lower)
1
ebb(decline, degenerate, deteriorate, decay)
1
flag(decline, degenerate, deteriorate, decay)
1
go downhill(verb, expression, decline, fail, lower)
1
impair(decline, destroy, degenerate, decay)
1
injure(decline, degenerate, degrade, decay)
1
lapse(decline, degenerate, deteriorate, decay)
1
lose quality(verb, expression, decline, fail, lower)
1
lower(decline, degenerate, degrade, decay)
1
mar(decline, degenerate, degrade, decay)
1
pervert(decline, degenerate, degrade, decay)
1
regress(decline, degenerate, deteriorate, decay)
1
retrograde(decline, degenerate, deteriorate, decay)
1
retrogress(decline, degenerate, deteriorate, decay)
1
skid(decline, degenerate, deteriorate, degrade)
1
slide(decline, degenerate, deteriorate, decay)
1
undermine(decline, degenerate, degrade, decay)
1
vitiate(decline, degenerate, degrade, decay)
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APASmart Define. (2015). decompose thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/decompose/thesaurus/synonyms
ChicagoSmart Define. 2015. "decompose thesaurus" https://smartdefine.org/decompose/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, decompose thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/decompose/thesaurus/synonyms>.
MLASmart Define. "decompose thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/decompose/thesaurus/synonyms>