Hiemal, which means relating to or characteristic of winter, can be described using a variety of antonyms to convey a different meaning. For instance, the antonym for hiemal could be summery, which means characteristic of or suitable for summer. Alternatively, the antonym for hiemal could be tropical, which refers to a warm climate found near the equator. Another antonym for hiemal could be balmy, which means pleasantly warm weather. Additionally, temperate, mild, and clement could be used as antonyms for hiemal, connoting a moderate climate with pleasant temperatures. By using these antonyms, we can better understand the range of climate conditions that exist beyond the winter season.