Trifles away means to waste time in a frivolous or unimportant manner. Some antonyms for the phrase include productivity, focus, efficiency, and diligence. Instead of trifling away the hours, one can work purposefully towards a goal, concentrate on a task, use time wisely, or remain diligent and committed to a task until it is complete. These antonyms emphasize the importance of valuing time and effort, and avoiding distractions that can lead to wasted opportunities. To overcome the tendency to trifling away time, we must cultivate a sense of purpose, self-awareness, and discipline, which will help us stay focused and productive even in the face of distractions.