Dictionary

overachiever

noun over·achiev·er \ˌō-vər-ə-ˈchē-vər\

: someone who has much more success than is normal or expected especially at a young age

Full Definition of OVERACHIEVER

:  one who achieves success over and above the standard or expected level especially at an early age
over·achieve \-ˈchēv\ intransitive verb
over·achieve·ment \-mənt\ noun

Examples of OVERACHIEVER

  1. She is an overachiever who plans to attend a top college.

First Known Use of OVERACHIEVER

1952

overachiever

noun over·achiev·er \ˌō-və-rə-ˈchē-vər\   (Medical Dictionary)

Medical Definition of OVERACHIEVER

:  one who achieves success over and above the standard or expected level especially at an early age
over·achieve intransitive verb, over·achieved over·achiev·ing

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