To cause someone to feel isolated or estranged.

अलग करना

English Usage: The harsh criticism was alienating to many of his supporters.

Hindi Usage: कठोर आलोचना उसके कई समर्थकों के लिए अलग करने वाली थी।

The state of feeling estranged or disconnected from others.

परायापन

English Usage: His alienation from his peers led to feelings of loneliness.

Hindi Usage: उसके साथियों से परायापन उसे अकेलेपन के अनुभवों की ओर ले गया।