There are a variety of synonyms for the word "renegotiating," each with slightly different connotations or uses. Some possibilities include "restructuring," which suggests a complete overhaul or redesign of an agreement or relationship; "revising," which implies making modifications or adjustments to an existing agreement or plan; "reworking," which suggests a more intensive or thorough process of revising or redesigning; or "reconsidering," which emphasizes the need to think through a decision or agreement from a fresh perspective. Other options might include "reframing," "revisiting," "reanalyzing," "rethinking," or "redefining." Ultimately, the choice of synonym will depend on the specific context and purpose of the negotiation or agreement in question.