A challenger represents someone who is ready to take on challenges, break barriers, and make a difference. They embody determination, courage, and the desire to overcome obstacles.
Competitor can be described as someone, whose key characteristic is to challenge themselves and others and always striving for improvement and success. They embrace competition as a means of personal growth and achievement.
In a nutshell, an antagonist is a character or force that opposes the main character and creates conflict in a story. They add depth and excitement to the narrative.