overachieve

[ oh-ver-uh-cheev ]
/ ˌoʊ vər əˈtʃiv /

verb (used without object), o·ver·a·chieved, o·ver·a·chiev·ing.

to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
to perform better or achieve more than expected, especially by others.

Origin of overachieve

1950–55; over- + achieve, or by back formation from overachiever

OTHER WORDS FROM overachieve

o·ver·a·chieve·ment, nouno·ver·a·chiev·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for over-achiever

overachieve
/ (ˌəʊvərəˈtʃiːv) /

verb

(intr) to perform (for example, in examinations) better than would be expected on the basis of one's age or talents

Derived forms of overachieve

overachiever, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012