"Are fascinated with" denotes a sense of curiosity or interest. Therefore, its antonym would be "are disinterested in" or "are bored with." People who are disinterested in something do not show any curiosity or engagement in it, while those who are bored with something have lost interest in it altogether. Moreover, "are unimpressed with" could also be an antonym for "are fascinated with," as it implies a lack of interest or impact on a person's emotions. Overall, antonyms for "are fascinated with" demonstrate the opposite emotions, feelings, or attitudes that people associate with fascination.