smolder

1 ENTRIES FOUND:
smolder (US) verb
or British smoulder /ˈsmoʊldɚ/
smolders; smoldered; smoldering
smolder (US)
verb
or British smoulder /ˈsmoʊldɚ/
smolders; smoldered; smoldering
Britannica Dictionary definition of SMOLDER
[no object]
1 
: to burn slowly without flames but usually with smoke
2 
literary
a  : to feel a strong emotion but keep it hidden
b  : to be felt strongly by someone without being directly shown or expressed
3 
: to be attractive in a sexy way