When thinking about the term "high-flyer," there are several synonyms that come to mind. One such word is overachiever. Overachievers often go above and beyond what is expected of them, leading to exceptional academic or professional success. Another synonym might be go-getter, as high-flyers tend to be motivated individuals who work tirelessly to achieve their goals. Other possible synonyms include high-achiever, top performer, or rising star. Each of these words conveys a sense of successful ambition and drive, which are often characteristics of those labeled as high-flyers. Ultimately, no matter the word used, these individuals are often recognized for their impressive accomplishments and potential.