Mare's-nests are a common term used to describe a confused and complicated situation that is often difficult to handle. The word itself has a quirky charm, but there are many alternative expressions that convey the same meaning. Some other synonyms for the word mare's-nests include complex, mess, tangle, imbroglio, conundrum, muddle, and snarl. All these alternatives can be used interchangeably to describe a complex, tangled, and confusing situation. Whether you call them mare's-nests, messes, or tangles, these expressions all capture the sense of confusion and chaos that many people feel when trying to navigate a complex situation.