Antonyms for the term "do one's part" can include words like neglect, ignore or shirk. If someone neglects to do their part, it means they are not contributing fully to the task at hand. Ignoring one's duties or responsibilities can lead to negative consequences, affecting the outcome of a project or task. Shirking one's part is also considered a negative term, meaning someone avoids doing their share of work or taking responsibility for their actions. It is crucial to ensure everyone involved does their part to achieve success and reach goals efficiently. Therefore, it is better to work together and share responsibilities rather than neglecting or shirking them.