The phrase "blows out the water" means "to defeat decisively" or "to surpass by a large margin." Some possible antonyms for this expression include "trails behind," "falls short," "lags behind," "comes up short," or "misses the mark." When something fails to live up to expectations, it can be said to "disappoint," "underwhelm," or "fail to impress." On the other hand, if something meets or exceeds expectations, it can be described as "impressive," "outstanding," "remarkable," or "excellent." While "blows out the water" may connote a sense of competition or comparison, its antonyms often suggest a lack of performance or achievement.