1. a person who does not join groups, organizations, or social activities

Examples

• As a nonjoiner, she preferred to work alone rather than participate in team projects.
• He was known as a nonjoiner who avoided clubs and social organizations.
• The nonjoiner sat quietly in the corner during the group activity.
• Despite being friendly, she remained a nonjoiner throughout high school.
• His reputation as a nonjoiner made it difficult for him to network professionally.
• The nonjoiner declined all invitations to join the neighborhood committee.