1. past tense of counterargue; presented an opposing argument or rebuttal in response to someone else's argument
Usage: transitive or intransitive; formal/academic register

Examples

• She counterargued that the evidence did not support his conclusion.
• The lawyer counterargued each point raised by the opposing counsel.
• When challenged, he counterargued with statistical data.
• The professor counterargued the student's thesis with several scholarly sources.
• They counterargued back and forth throughout the debate.
• He counterargued that the policy would have unintended consequences.