1. active hostility or opposition between people or groups
2. the action of opposing or resisting something

Examples

• The antagonism between the two political parties made compromise impossible.
• There was clear antagonism in her voice when she spoke about her former boss.
• The treaty helped reduce the antagonism between the neighboring countries.
• His antagonism toward authority figures got him into trouble at school.
• The debate revealed deep antagonism between environmental groups and developers.
• She tried to hide her antagonism during the meeting.