Exclaimed is a term used to describe a loud, passionate or angry outburst made in response to something unexpected. The opposite or antonyms for this word would be quiet, subdued or controlled expressions such as muttered, whispered or mumbled. While exclaimed can be used to convey excitement or enthusiasm, its antonyms evoke more restraint, caution or doubt. Other antonyms for exclaimed might include words like intoned, stated, or asserted, all of which indicate a more measured, even-tempered response. Thus, depending on the context, the opposite of exclaimed can vary based on what kind of response is desired or appropriate in a given scenario.