Undulated is a term that describes a form of movement that resembles a wavy motion. Synonyms for undulated include wiggled, wavered, oscillated, rippled, swayed, billowed, curved, flexed, and contorted. Each of these words can be used to describe a specific type of undulation, such as the wiggling of a snake or the rippling of water. Depending on the context in which it is used, each of these synonyms can add additional depth and nuance to one's description of undulation. Whether used in writing, speech, or artistic expression, these synonyms provide writers and speakers alike with a rich palette of words to choose from when describing undulation.