i-adjective
Polite prefix お softens the directness, but the word still carries a negative judgment about someone's attitude. Often used in the phrase お高いところ (haughty manner).
彼女はいつもお高い態度で、話しかけにくい。
She always has a haughty attitude and is hard to talk to.
あの店
The staff at that shop are stuck-up and unpleasant.