The phrase "took breath away" is a powerful expression used to describe an unforgettable and awe-inspiring moment. However, for its antonyms, one might consider words like "unimpressed," "underwhelmed," or "unmoved." These words describe feelings of indifference or lack of emotional response to an experience. In contrast, other antonyms might include "ordinary," "mundane," or "boring," which reflect a sense of average or unremarkable experiences. Overall, there are countless antonyms for "took breath away" that can be used to describe mundane, unremarkable, or uninspired experiences that lack in emotional impact.