weedy  
adjective uk/ˈwiː.di/ us/ˈwiː.di/
  (PLANT)      
  杂草;野草
containing a lot of weeds
  a weedy pavement 杂草丛生的人行道 
   (WEAK)         
 UK informal disapproving(人)瘦弱的,孱弱的 
used to describe a person who is thin and physically weak
  a weedy child 瘦弱的孩子 
  UK informal disapproving平淡无奇的 
weak and not exciting or interesting
  The story had a rather weedy plot. 这个故事的情节很平淡。