- to perform, especially academically, below the potential indicated by tests of one's mental ability or aptitude.
- to perform below expectations or achieve less than expected, especially by others.
Origin of underachieve
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (intr) to fail to achieve a performance appropriate to one's age or talents
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