- 1[intransitive] to burn slowly without a flame The bonfire was still smoldering the next day. a smoldering cigarette (figurative) The feud smoldered on for years.
- 2[intransitive] (formal) to be filled with a strong emotion that you do not fully express synonym burn smolder (with something) His eyes smoldered with anger. smolder (in something) Anger smoldered in his eyes.
NAmE//ˈsmoʊldər//Verb Forms present simple I / you / we / they smolder he / she / it smolders past simple smoldered -ing form smoldering