The phrase "swept one's feet" is an idiom that means to be swept off one's feet by love or excitement. The antonyms for this phrase could be "unimpressed," "unmoved," or "unaffected." These words imply a lack of feeling or enthusiasm towards someone or something, which is the opposite of being swept off one's feet. Other antonyms for "swept one's feet" could include "disenchanted," "disillusioned," or "dismayed." These words suggest a negative or disappointed reaction, which is the complete opposite of experiencing love or excitement. Overall, these antonyms provide a range of alternatives to describe a lack of strong emotion towards someone or something.