"Mind blown" refers to a state of extreme surprise, amazement, or disbelief. There are several synonyms to convey the same meaning, such as "mind-boggling," which implies something difficult to understand or comprehend. "Astonishing" suggests something that is amazing or startling while "mind-bending" indicates something that is so unique that it challenges one's thought process. "Incredible" describes something that is beyond belief or awe-inspiring. "Stupefying" suggests leaving one feeling stunned or unable to think clearly. "Mind-altering" describes something that can change one's perspective or perception. There are many ways to express the feeling of having one's mind blown and these synonyms convey the same feeling.