alienate
verbUK /ˈeɪliəneɪt/
US /ˈeɪliəneɪt/
To make someone feel left out or not part of the group.
If you ignore your little brother at the party, you might alienate him.
RELATED WORDS
OTHER MEANINGS
2. To make someone feel unfriendly or hostile toward you.
His rude comments alienated his coworkers.
3. To transfer ownership of property to another person.
The owner decided to alienate the land to a new buyer.
4. To cause something to become strange or different from its original nature.
The new rules alienated the club from its founding spirit.