If you are looking for alternative words to use instead of "inspissated," there are a few options you can consider. "Concentrated" is one word that could be used as a synonym, referring to something that has been made denser or thicker. "Viscous" is another possibility, describing something that has a thick, sticky consistency. "Gel-like" could also work, as it implies a semi-solid texture that is thicker than usual. Finally, "thickened" or "congealed" could be used interchangeably with "inspissated," as they all refer to the process of making something thicker or more solid.