1. the quality or state of being unwilling to share someone or something; a strong desire to own or control.
Usage: uncountable noun; commonly used in psychology and relationship contexts

Examples

• Her possessiveness over her toys made it difficult for her to share with other children.
• The coach warned the player about his possessiveness with the ball during team practice.
• His possessiveness in the relationship caused constant conflict with his partner.
• The dog's possessiveness over its food bowl was a behavioral issue the trainer needed to address.
• She struggled with possessiveness when it came to her best friend's other friendships.
• Possessiveness of material goods is often seen as a sign of insecurity.
• The parent's possessiveness prevented their adult child from becoming independent.