3
spoil(verb, dull, hurt, harm, dirty)
3
tar(verb, dull, hurt, harm, spoil)
2
depreciate(verb, criticize, insult, disparage, degrade)
2
attack(verb, smear, slander, malign)
2
bad-mouth(verb, ruin, criticize, insult, disgrace)
2
badmouth(verb, ruin, criticize, dirty, disgrace)
2
blackening
2
blister(verb, mark, ruin, push, slight)
2
blow upon(verb, phrasal verb, detraction)
2
blur(verb, hurt, harm, spoil, dirty)
2
brown(burn, scorch)
2
cast a shadow(verb, expression, idiom, cover, obscure)
2
damage(verb, dull, hurt, mark, crush)
2
daub(stain, blemish, smear, wash, distort)
2
decry(verb, criticize, insult, disparage, degrade)
2
deprecate(verb, insult, slander, libel, detraction)
2
discolour
2
ebonize(verb, darken)
2
gray(verb, cover, obscure, protect, dim)
2
hurt(verb, dull, mark, damage, spoil)
11 years ago|10k views|share |citing 
APASmart Define. (2015). blacken thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/blacken/thesaurus/synonyms
ChicagoSmart Define. 2015. "blacken thesaurus" https://smartdefine.org/blacken/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, blacken thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/blacken/thesaurus/synonyms>.
MLASmart Define. "blacken thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/blacken/thesaurus/synonyms>