The phrase "blown away" is commonly used to express amazement, shock or admiration. However, there are many synonyms that can be used to convey the same meaning. Some alternatives for "blown away" include words such as impressed, awed, dazzled, flabbergasted, stunned, astonished, overwhelmed, and speechless. Each of these words carries a slightly different connotation, but they all express a sense of being impressed or amazed by something. These synonyms can be used interchangeably in conversations, speeches, or written works to express a similar emotion to "blown away".