expression
primly; smugly; with one's nose in the air
Describes a haughty, self-satisfied attitude, often with a facial expression or posture that looks down on others. Used adverbially.
彼女はつんと澄まして、私の挨拶を無視した。
She ignored my greeting, acting all prim and smug.
つんと澄まして歩く姿が印象的だった。
The way she walked with her nose in the air was striking.