aloof
🇺🇸
/əˈluːf/
🇬🇧
/əˈluːf/
If someone is aloof, they are not very friendly and they appear to not be very interested in other people.
At the party, Mark stayed aloof, not talking to anyone.
パーティーで、マークは誰とも話さずに離れたところにいました。