What is another word for did a slow burn?
Pronunciation: [dˈɪd ɐ slˈə͡ʊ bˈɜːn] (IPA) 
The phrase "did a slow burn" is often used to describe someone who is gradually becoming angry or frustrated. However, there are several other synonyms that can be used in place of this phrase. Some alternatives include "fumed quietly," "chewed on one's anger," " simmered with rage," "smoldered with resentment," and "contained one's anger." Each of these synonyms conveys a sense of slowly building frustration and anger. Using a variety of synonyms can help to bring nuance and variety to your writing, allowing you to better express the emotions and motivations of your characters in a more diverse and impactful way.
