think little of

US /θɪŋk ˈlɪt.əl əv/
UK /θɪŋk ˈlɪt.əl əv/
"think little of" picture
1.

to consider something to be unimportant or of little value

:
He tends to think little of other people's opinions.
Don't think little of her efforts; she worked very hard.