underachiever
Kelime Anlamı :

1. yaşından veya seviyesinden beklenenden azını becerebilen kimse.
2. bekleneni veremeyen kimse.
3. Beklenilen kadar iyi yapamamak, beklenilen kadar başarılı olamamak.
Tanımlar :
1. one who underachieves by performing less well than expected.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. a student who does not perform as well as expected or as well as the iq indicates
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.