flimsy
adjective uk/ˈflɪm.zi/ us/ˈflɪm.zi/
(THIN)
很薄的；易破的；易损坏的
very thin, or easily broken or destroyed
You won't be warm enough in that flimsy dress. 你穿那么薄的衣服不够暖和。
We spent the night in a flimsy wooden hut. 我们在一个不太坚固的小木屋里过了一夜。
a flimsy cardboard box 薄纸板箱
(DIFFICULT TO BELIEVE)
（论点、借口等）不足信的，站不住脚的
A flimsy argument, excuse, etc. is weak and difficult to believe.
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。