Antonyms for the word "counter measure" would include words such as "enabler," "aid," and "support." While a counter measure is designed to prevent or mitigate negative outcomes, these antonyms all suggest actions or tools that can help facilitate positive outcomes. Instead of blocking or stopping something bad from happening, an enabler or support is something that can help create or promote something good. Additionally, antonyms of "counter measure" might include words like "enhancer," "booster," or "accelerator," all of which suggest tools or processes that can actively improve a situation or outcome, rather than merely preventing something negative from occurring.