The word "extraordinarinesses" is incredibly unique and rare, and therefore finding exact antonyms for it can be a difficult task. However, when we break down the meaning of the word, we can look for antonyms of the individual words. "Extraordi nary" means something that is unusual or exceptional, so antonyms for this word could be ordinary or common. "Ness" indicates a state of being or a quality, so antonyms for this could be absence, nonexistence, or lack. Therefore, some possible antonyms for "extraordinarinesses" could be commonness, absence of excellence, or lack of exceptional qualities.