Definition of "overachiever" []

• One who overachieves; one who has too much success. (noun)

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• "I still see a black player labeled as an underachiever, while a white player who carries the same stats is called an overachiever."
• "The Jackal strikes me as the kind of overachiever who, assigned to kill a mosquito, would purchase contraband insecticides from Iraq and bring them into the United States by hot air balloon, distilling his drinking water from clouds and shooting birds for food."
• "She redefines "overachiever" while doing tangibly good work for humanity, developing prosthetic arms with neural interfaces."