Meaning of WEAKNESS in English
/ ˈwiːknəs; NAmE / noun
[ U ] lack of strength, power or determination :
The sudden weakness in her legs made her stumble.
the weakness of the dollar against the pound
He thought that crying was a sign of weakness .
[ C ] a weak point in a system, sb's character, etc. :
It's important to know your own strengths and weaknesses .
Can you spot the weakness in her argument?
[ C , usually sing. ] weakness (for sth/sb) difficulty in resisting sth/sb that you like very much :
He has a weakness for chocolate.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005