smouldering
noun
[ ˈsməʊldərɪŋ ]
• the process of burning slowly with smoke but no flame.
• "the smouldering can go unnoticed for many days before smoke starts to be seen"
smouldering
adjective
• burning slowly with smoke but no flame.
• "a smouldering fire"
smoulder
verb
• burn slowly with smoke but no flame.
• "the bonfire still smouldered, the smoke drifting over the paddock"
Origin:
late Middle English: related to Dutch smeulen .