For twins, they are very unlike.
It's unlike him not to call.
An example of unlike is a woman with short hair in a group of women with long hair.
An example of unlike is to remove the like which you previously selected under a post from one of your friends on FaceBook.
An example of unlike is to remove a television show which you previously had noted as one of your likes on FaceBook.
It's unlike him to give up.
The brothers are quite unlike each other.
They contributed in unlike amounts.
I unliked the video link after I realized it was making fun of me.
She's unlike the rest of her family.
A case unlike any other.