The phrase "sweeping off feet" generally refers to a feeling of being swept away or overwhelmed, particularly in a romantic or emotional sense. Some antonyms of this phrase might include "unimpressed," "unaffected," "unmoved," "disinterested," or "detached." These words suggest a lack of emotional engagement or excitement, rather than the intensity and passion implied by "sweeping off feet." Other antonyms might include "calm," "steady," "stern," "practical," or "rational," which indicate a level-headed or grounded approach to emotional interactions. Regardless of the specific antonym used, these words represent a contrasting perspective to the romanticized, emotional experience of being "swept off one's feet.