Correct

笨头笨脑

/ bèn tóu bèn nǎo / 
Strokes

Example

Definition

slow-minded; dull-minded

1
Tā
他
bèntóubènnǎo
笨头笨脑
de
的
  
。

He has a thick skull. / He is a bit slow.

Definition

awkward; clumsy

2
Zhè
这
jiājù
家具
bèntóubènnǎo
笨头笨脑
de
的
  
,
wǒ
我
yīdiǎnr  
一点儿
yě
也
bù
不
xǐhuan
喜欢
  
。

This furniture looks clumsy; I don't like it at all.