1. place under suspicion or cast doubt upon
- sully someone's reputation
2. make dirty or spotty, as by exposure to air; also used metaphorically
3. charge falsely or with malicious intent; attack the good name and reputation of someone
Sentences with sully as a verb:
- He did not wish to sully his hands with gardening.
- He did not wish to sully his reputation with an ill-mannered comment.