ADJ-GRADED 懦弱的;窝囊的 If you describe a person or their behaviour as wimpy, you disapprove of them because they are weak and seem to lack confidence or determination. 懦弱的;窝囊的 [informal, disapproval]
...a wimpy unpopular schoolboy.
不合群的懦弱小男生
This portrays her as wimpy, but she has a very strong character.