- 1(literary) sully something to spoil or reduce the value of something By cheating they have sullied the good name of their country.
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- 2sully something to make something dirty She wondered if she dared risk sullying the gleaming sink.
sully
verbNAmE//ˈsʌli//
(formal or )Verb Forms present simple I / you / we / they sully he / she / it sullies
past simple sullied
-ing form sullying
Check pronunciation: sully