blacken
[verb]
Synonyms:
- darken, befoul, begrime, cloud, dirty, make black, smudge, soil
- discredit, defame, denigrate, malign, slander, smear, smirch, vilify

---

Related Idioms: blacken one's good name, give one a black eye, throw mud at

[TahlilGaran] English Synonym Dictionary ▲

black‧en /ˈblækən/ verb

1. [intransitive and transitive] to become black, or to make something black:
The thunder became louder and the sky blackened.

2. blacken sb’s name/character/reputation to say unpleasant things about someone in order to make other people have a bad opinion of them

[TahlilGaran] Dictionary of Contemporary English ▲