68 entries under weaken topic. ×

3
putrefy(verb, decline, hurt, harm, spoil)
2
be impaired(verb, decline, lessen, degenerate)
2
become contaminated(expression, decline, lessen, degenerate)
2
break up(expression, decline, lessen, degenerate)
2
collapse(verb, decline, lessen, degenerate)
2
corrode(verb, break, dull, decline, hurt)
2
crumble(verb, decline, hurt, harm, spoil)
2
curdle(verb, decline, lessen, degenerate)
2
decline(verb, lessen, degenerate, deteriorate)
2
decompose(verb, decline, hurt, harm, spoil)
2
depreciate(verb, cut, decline, ruin, criticize)
2
disintegrate(verb, break, decline, hurt, ruin)
2
dissolve(verb, cut, decline, ruin, thin)
2
dry-rot(verb, decline, lessen, degenerate)
2
dwindle(verb, decline, lessen, degenerate)
2
fade(verb, break, decline, hurt, ruin)
2
fail(verb, decline, lessen, degenerate)
2
get worse(expression, decline, lessen, degenerate)
2
go bad(verb, expression, decline, ruin)
2
go to seed(expression, idiom, decline, lessen)
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APASmart Define. (2015). pollute thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/pollute/thesaurus/synonyms
ChicagoSmart Define. 2015. "pollute thesaurus" https://smartdefine.org/pollute/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, pollute thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/pollute/thesaurus/synonyms>.
MLASmart Define. "pollute thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/pollute/thesaurus/synonyms>