ichidan verb, intransitive verb
Describes a childish or moody reaction when things don't go one's way, often with a visible pout or withdrawn attitude. Common in everyday speech.
弟はおもちゃを買ってもらえなくてすねている。
My little brother is sulking because he couldn't get the toy.
彼女はちょっとしたことでよくすねる。
She often pouts over little things.