"Wert up to ears in" means you are deeply involved in something, usually a task or a situation. The best antonyms for this phrase might be "uninvolved," "disengaged," and "detached." In other words, if you are not up to your ears in something, you might be aloof, distant, or apathetic. Other antonyms include "uninterested," "indifferent," and "unconcerned," which all suggest a lack of emotional investment in a given situation. So, while being "up to your ears in" something can sometimes feel overwhelming, the antonyms for this phrase remind us that there are times when it's essential for us to take a step back and detach ourselves from the things that are occupying us.