uncool
adjectiveUK /ˌʌnˈkuːl/
US /ˌʌnˈkuːl/
Not cool or popular with other people.
He felt uncool because he wore the wrong shoes to school.
OTHER MEANINGS
2. Not calm or relaxed; showing too much worry or anger.
It was uncool of him to shout at the referee.
3. Not fashionable or stylish.
That old phone is totally uncool now.
4. Behaving in a way that others think is strange or silly.
Dancing in the hallway might seem uncool to some kids.