Flailed is a term used to describe chaotic and uncoordinated movements made by someone or something. Some synonyms for flailed include swung, thrashed, waved, whipped, or flapped. Each of these words highlights a different dimension of the uncontrolled movement. "Swung" and "whipped" both suggest speed and force while "flapped" and "waved" emphasize a more languid and uncontrolled motion. "Thrashed" suggests rough, violent movements while "flailed" is more general. No matter what word you choose, each synonym for flailed conveys a sense of frenzied movement that is unpredictable and difficult to control.