Clingy describes someone who needs constant attention, reassurance, or physical closeness from another person. A clingy friend might text you every five minutes when you're busy with homework, always want to sit next to you at lunch, or get upset if you play with other friends. A clingy younger sibling might follow you from room to room, not wanting to be alone even for a moment.

The word usually carries a negative feeling because clingy behavior can feel suffocating or exhausting to the other person. Everyone needs some independence and space, even in close relationships. There's a difference between wanting to spend time with someone you care about and being so clingy that you make them feel trapped or overwhelmed.

People often become clingy when they feel insecure or worried about losing a relationship. A child might act clingy after a scary experience or when starting at a new school. Understanding why someone acts clingy can help, but it's still important for them to learn to feel secure on their own. Strong friendships have room for both togetherness and independence.