When looking for antonyms for the phrase "does part," it's important to consider the different meanings that the phrase can have. If it's referring to someone's role or responsibility in a situation, antonyms might include "ignores," "shirks," or "neglects." On the other hand, if it's referring to participation or involvement, antonyms might include "withdraws," "resigns," or "backs out." Another possible antonym could be "completes," as the phrase "does part" often implies a partial or incomplete effort. Ultimately, the best antonym will depend on the context in which the phrase is being used, and what specifically is being contrasted.