Carries to completion means finishing or completing a task successfully. The antonyms of this action could be abandoning, quitting, or giving up. These negative actions indicate a lack of perseverance or determination to reach the end goal. Another antonym could be stalling or delaying, which means that progress is slowed or stopped completely. In contrast, pushing forward, persevering, and completing tasks with determination are positive ways to achieve success. It is important to have a strong work ethic and good time-management skills to carry tasks to completion, as this will increase productivity and success in all aspects of life.