Simple Definition of overachiever
: someone who has much more success than is normal or expected especially at a young age
Examples of overachiever
She is an overachiever who plans to attend a top college.
First Known Use of overachiever
Medical Definition of overachiever
: one who achieves success over and above the standard or expected level especially at an early age
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Medical Dictionary: Definition of "overachiever"
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