Slimer refers to something that is slimy or covered in slime. Some possible synonyms for this word include slimy, sticky, gooey, viscous, gummy, clammy, greasy, oily, and slick. These words all refer to substances or textures that are wet, slippery, and difficult to handle or clean up. Depending on the context, other synonyms for slimer might include repulsive, disgusting, or revolting. These words suggest a strong negative reaction to the sliminess in question, and might be used to describe food, people, or other objects that are perceived as unpleasant or unappealing. Overall, synonyms for slimer capture the slippery, slimy, and unpleasant qualities of this word.