Basic

Something that is boring, unimaginative, uncreative uninspiring or/and uninteresting.

Usually refers to people following the norm, using or acting in a cliche way, copying or doing what other people do, but in a very bland way.

Can apply to anything, but usually refers to people, activities, attitude and style/clothing.

Her story is a picture of the family dog that died a few years ago WITH Mariah Carey's Always Be My Baby playing in the background. I can't deal, she's just so basic.