Synonyms|654Antonyms|133|Broader|15Narrower|19Related|271

95 entries under weaken topic. ×

2
lessen(verb, decline, degenerate, deteriorate)
2
mildew(decline, lessen, degenerate, deteriorate)
2
mold(decline, lessen, degenerate, deteriorate)
2
molder(decline, lessen, degenerate, deteriorate)
2
mortify(decline, lessen, degenerate, deteriorate)
2
pejorate(decline, lessen, degenerate, deteriorate)
2
perish(decline, lessen, degenerate, deteriorate)
2
pine(verb, break, fail, disease)
2
pollute(verb, decline, lessen, degenerate)
2
putrefy(decline, lessen, degenerate, deteriorate)
2
putresce(decline, lessen, degenerate, deteriorate)
2
reach depths(expression, decline, lessen, degenerate)
2
regress(fall, fail, degenerate, deteriorate)
2
rot(verb, break, decline, fail)
2
sap(verb, decline, worry, fail, strain)
2
shrivel(decline, lessen, degenerate, deteriorate)
2
slip back(expression, fall, fail, degenerate)
2
slump(decline, lessen, degenerate, deteriorate)
2
spoil(verb, decline, lessen, degenerate)
2
suppurate(decline, lessen, degenerate, deteriorate)
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APASmart Define. (2015). sicken thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sicken/thesaurus/synonyms
ChicagoSmart Define. 2015. "sicken thesaurus" https://smartdefine.org/sicken/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, sicken thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sicken/thesaurus/synonyms>.
MLASmart Define. "sicken thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/sicken/thesaurus/synonyms>