flimsy

/ˈflɪm.zi/

形容词

（论点、借口等）不足信的，站不住脚的
When I asked him why he was late, he gave me some flimsy excuse about having car trouble.
我问他为什么迟到时，他给了个很不足信的借口，说车出毛病了。
很薄的；易破的；易损坏的
a flimsy cardboard box
薄纸板箱