2 Words to use with smoldering

He had lived a sheltered life from his earliest youth, so it transpired, and Abul Malek rejoiced in the discovery, it being his belief that all men are flesh and that within them smolder flames which some day must have mastery.

And all the passionate resentment her deep nature was capable of surged up against fate, so that she looked more like the black panther than ever, and her mood had only dwindled into a sullen smoldering ragewhile she still sat in the peculiar, concentrated attitude of an animal waiting to springwhen Tristram opened the door, and came in.

2 Words to use with  smoldering