Overcrowding is a growing problem in many cities, leading to various negative consequences. However, there are some antonyms for over-crowding that can help alleviate the issue. Firstly, "spaciousness" can be considered as an antonym, which suggests open, wide spaces that are not cramped or congested. Secondly, "emptiness" indicates absence or lack of people, creating ample space and free movement. Thirdly, "unpopulated" is another antonym, which suggests a place or area that is not densely populated, offering more breathing space and comfort. Lastly, "solitude" means seclusion or isolation, allowing individuals to have their personal space without feeling crowded or pressured. These antonyms offer a sense of relief and freedom from the issue of overcrowding.