The phrase "are one's ears in" means to be paying attention or listening carefully. Some antonyms for this phrase could include being distracted, ignoring, or disregarding. If someone's ears are out, it could mean they are not hearing what is being said or are not engaged in the conversation. Another antonym could be daydreaming or zoning out, indicating a lack of focus or interest in the topic at hand. Similarly, if someone's ears are off, it could suggest they are not fully invested in the conversation, maybe because they are preoccupied with other thoughts or tasks.