1. a person who prefers to be alone or avoids the company of others

Examples

• Jake was always a loner who preferred reading books to hanging out with friends.
• She’s not antisocial, just a natural loner who enjoys her own company.
• The new student seemed like a loner, eating lunch by himself every day.
• Many artists are loners who need solitude to create their best work.
• He was known as the office loner who rarely joined group activities.
• Being a loner doesn’t mean you’re lonely or unhappy.