Bang away is a phrasal verb that refers to making loud noises or repeatedly hitting something. Its antonyms include words such as "silence," "quiet," "stillness," "calm," and "peace." If you want to express the opposite idea of the phrase "bang away," you could use expressions like "softly," "gentle," or "delicate." Additionally, phrases like "cease fire," "stop," "halt," and "end" are also antonyms for "bang away." Choosing the right vocabulary depends on the context in which the phrase is being used. In writing or conversation, using the correct antonym can provide clarity and improve communication.