Wordnet polsko-angielski 
                         (a student who does not perform as well as expected or as well as the IQ indicates) 
underachiever, underperformer, nonachiever 
Słownik polsko-angielski EXETER Copyright © http://www.kastor.strefa.pl.
                        weakling, weed
Praktyczny słownik religijny polsko-angielski 2005, Krzysztof Czekierda
                        weakling
Otwarty słownik polsko-angielski V.9.2007, Copyright (c) Jerzy Kazojć - 2007 r.
                        weed