If you're looking for synonyms for the term "ill-will", you may want to consider using any of the following: animosity, resentment, hostility, antipathy, enmity, malice, spite, grudges, bitterness, rancor, hatred, venom, displeasure, or dislike. All of these terms can be used to describe negative emotions or feelings towards someone else. It's important to note that each of these words may also have different connotations. For example, "hatred" might be considered more intense than "dislike" and "malice" may suggest intention to hurt someone more than "ill-will". Choosing the most appropriate synonym will depend on the context in which you are using the word.