"Foments" is a strong word that means to incite or instigate trouble, rebellion, or conflict. There are many synonyms for "foments" such as provoke, agitate, instigate, incite, stimulate, rouse, inflame, stir up, whip up, excite, fuel, and kindle. Each of these words signify a certain amount of instigation towards a particular outcome. While a few of these words may have a positive connotation, most of them are linked with negative actions or intentions. It is important to use the right synonym depending on the situation and to always be mindful of the repercussions of our words and actions.