The phrase "hath part in" refers to something that you are involved in or a participant in. Some antonyms for this phrase that indicate non-involvement or lack of participation include "uninvolved," "unengaged," "unconnected," "disinterested," and "unconcerned." If you do not have a part in something, you can be described as being "detached," "removed," or "apathetic." In some instances, the phrase "hath part in" can have a negative connotation, implying that someone is meddling in something in which they should not be involved. Antonyms for this sense of the phrase might include "uninvolved," "unconcerned," or "disengaged.