Counter-claimed means to make a claim in response to an existing one. Antonyms for this term would be phrases indicating that no claim was made, such as "conceded," "agreed," "accepted," or "acknowledged." Other antonyms could include "rejected," "disputed," or "ignored," each indicating a different level of disagreement or lack of engagement with the original claim. Ultimately, the antonym for counter-claimed depends on the context of the situation and the speaker's intent. In any case, understanding antonyms and synonyms of a given word can help us communicate more effectively and strategically in any situation.