The antonyms for the phrase "most populated" can vary depending on the context. However, some common antonyms include "least populated," "sparsely populated," "underpopulated," or "uninhabited." These terms describe areas or regions with very few inhabitants, whether due to geographic isolation, harsh environments, or lack of development. Some examples of such locations might include remote islands, deserts, or mountainous regions that are difficult to access or sustain human life. In contrast to heavily populated cities or urban areas bustling with human activity, these areas are often characterized by wide-open spaces, natural beauty, and opportunities for quiet contemplation or outdoor adventure.