Antonyms are words that have the opposite meanings to each other. For the word "counter acting," or to act in opposition to something, some antonyms could include "aiding," "assisting," or "supporting." These words refer to actions that work together or help to further a particular goal or purpose. Another antonym for "counter acting" could be "concurring," which means to agree or share the same opinion as someone else. By understanding antonyms, we can better express ourselves and communicate effectively. When writing or speaking, it is important to consider the opposite meanings of words in order to convey our intended message.