The phrase "are crawling with" is often used to describe a place or situation that is filled with something undesirable, such as pests or criminals. Antonyms for this phrase could include "are free of", "are devoid of", "are lacking in", or "are empty of". These words convey a sense of emptiness or cleanliness, rather than overcrowding or infestation. For example, one might say "the park is free of litter" or "the neighborhood is devoid of crime" to indicate the absence of these negative elements. Using these antonyms can help describe a place in a positive light and emphasize its desirable qualities.