Antonyms for the phrase "puts one's foot down" could include "hesitates," "procrastinates," "avoids," "wavers," "stalls," "dawdles," "lollygags," "lingers," "slows," "waits," "delays," "takes it easy," or "puts off." When someone puts their foot down, it often implies a sense of decisiveness, determination, and assertiveness. Conversely, the antonyms presented above signify a lack of clarity, purpose, and firmness in one's actions or choices. While "putting one's foot down" can be seen as a positive trait in some situations, it's essential to be mindful of when it might be better to take a step back and consider all the options before making a decision.