The word "commonnesses" refers to the state of being ordinary or frequent. Its antonyms, on the other hand, are words that describe exclusivity, novelty, or rarity. Some antonyms of "commonnesses" are uniqueness, distinctiveness, infrequency, singularity, and rarity. Unique suggests a characteristic or feature that is one of a kind and stands out from others. Distinctive refers to qualities that make something easily identifiable and recognizable. Infrequency describes things that do not happen often or are not commonplace. Singularity suggests a characteristic that is exceptional or unusual, while rarity describes something that is scarce or scarcely found. These antonyms serve to highlight the opposite of what is commonly seen or experienced.