What is another word for heartburning?
Pronunciation: [hˈɑːtbɜːnɪŋ] (IPA) 
Heartburning is often used to describe an intense feeling of agitation or resentment. There are several synonyms for this word that can be used depending on the context. For instance, the term vexation can be used to describe a feeling of deep frustration that results from a perceived injustice or slight. Similarly, the word animosity denotes a deep-seated hostility or resentment that often lingers long after the initial event that caused it. Other synonyms for heartburning include bitterness, anger, and exasperation. Regardless of the word used, the feeling of heartburning can be incredibly intense and difficult to overcome.
