What is the term for the perspective that contradicts an established argument?

The term that best fits the definition of a perspective that contradicts an established argument is a counterargument. A counterargument presents an alternative viewpoint or reasoning that opposes the main argument, effectively challenging its validity. This term is commonly used in discussions, debates, and persuasive writing as a way to anticipate objections, strengthen one’s own position, and engage critically with different opinions.

In the context of argumentation, presenting a counterargument is essential, as it demonstrates an understanding of the topic and acknowledges other perspectives. This can strengthen the original argument by addressing potential weaknesses and showing that the author has considered multiple sides of an issue.