Blow mind is an expression used to describe something amazing or astonishing. Its antonyms describe something that is underwhelming, disappointing, or mundane. The opposite of blowing someone's mind could be unremarkable, predictable, or boring. Other antonyms could be offensive, unimpressive, or forgettable. When something does not impress someone in the way they expected, it can also be described as anticlimactic or unsatisfactory. Sometimes, the best opposite of blow mind may simply be nothing, as in a lack of excitement or emotion. Overall, antonyms of blow mind include dull, uninspiring, and unexciting words.