Crowing bluster is a term that refers to arrogant boasting or bragging. There are several synonyms that can be used in place of crowing bluster, such as blustering, swaggering, boasting, vaunting, and gloating. Blustering is the most similar to crowing bluster, as it also implies loud and boastful behavior. Swaggering also indicates boastfulness and arrogance, but carries a sense of confidence or bravado. Boasting and vaunting both mean to speak or act in a manner that shows excessive pride in oneself. Gloating suggests smug satisfaction over an achievement or victory. These synonyms provide various options to use in place of crowing bluster, depending on the context and tone of the statement.