Antonyms for the phrase "uncomfortably warm" include "chilly," "cold," "cool," "refreshing," "invigorating," and "bracing." These words are particularly relevant for individuals seeking relief from hot or humid weather, or those looking for a specifically cooler and more comfortable environment. To describe a location or weather as "chilly," "cold," or "cool" is to indicate that it carries a low temperature, making it generally more pleasant for physical activity, requiring less effort for thermoregulation, and carrying fewer risks of dehydration or heat exhaustion. To call such a place "refreshing," "invigorating," or "bracing" further emphasises the invigorating sensation of exposure to lower temperatures, particularly during exercise or outdoor activity.