The opposite of "most Antarctic" could be "least Antarctic" or any word that describes warmth and tropical climates, such as "tropical," "equatorial," or "subtropical." Countries within these regions include parts of Africa, South America, Southeast Asia, and the Middle East. The Antarctic region is known for its extreme cold and dryness, with temperatures that sometimes drop below -100 F. In contrast, tropical regions are hot and humid, with temperatures that can soar well over 100 F. While the Antarctic region is sparsely inhabited, tropical regions are home to millions of people and are known for their lush vegetation, beaches, and diverse wildlife.