There are several synonyms for the word "in-exact" that can be used to convey a similar idea or meaning. Some of the common synonyms include "imprecise," "inaccurate," "approximate," "rough," and "incomplete." These words imply that something is not entirely accurate or precise and there may be some room for error or uncertainty. While these words may have slightly different connotations, they are all useful in situations where exactness is not required or possible. It is important to choose the appropriate synonym based on the context and desired tone of the conversation or text.