The words "changing mind" can be expressed by a number of antonyms, including words like "decisive," "resolute," and "committed." These antonyms refer to a mindset that is steadfast and unwavering, where the individual has made up their mind and is unlikely to be swayed by new information or perspectives. Other potential antonyms include "inflexible," "intransigent," and "stubborn," which all suggest a resistance to change or a refusal to consider alternatives. Ultimately, the antonyms to "changing mind" represent a range of different attitudes and beliefs, from firm conviction to a dogmatic rejection of alternative viewpoints.