48 entries under lessen topic. ×

12
blight(noun, decline, disease, weaken)
12
mold(noun, decline, weaken, degenerate)
6
spoil(verb, decline, weaken, degenerate)
5
rot(verb, decline, weaken, stain)
4
decompose(verb, decline, weaken, degenerate)
4
go bad(expression, decline, weaken, degenerate)
4
putrefy(verb, decline, weaken, degenerate)
3
break up(expression, decline, weaken, degenerate)
3
crumble(verb, decline, weaken, degenerate)
3
disintegrate(verb, decline, weaken, degenerate)
3
molder(decline, weaken, degenerate, deteriorate)
3
mortify(decline, weaken, degenerate, deteriorate)
3
putresce(decline, weaken, degenerate, deteriorate)
3
suppurate(decline, weaken, degenerate, deteriorate)
2
be impaired(decline, weaken, degenerate, deteriorate)
2
become contaminated(expression, decline, weaken, degenerate)
2
collapse(decline, weaken, degenerate, deteriorate)
2
corrode(verb, decline, weaken, degenerate)
2
curdle(verb, decline, weaken, degenerate)
2
decline(weaken, degenerate, deteriorate, wane)
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APASmart Define. (2015). mildew thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/mildew/thesaurus/synonyms
ChicagoSmart Define. 2015. "mildew thesaurus" https://smartdefine.org/mildew/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, mildew thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/mildew/thesaurus/synonyms>.
MLASmart Define. "mildew thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/mildew/thesaurus/synonyms>