Antonyms for the word "re-presentations" include "absences," "omissions," and "nonappearances." These words suggest a lack of an original item or concept. For example, the absence of a certain item or person may mean that they are not present or available. Omissions refers to something purposely left out or not included, while nonappearances suggest a situation where something or someone is expected, but fails to show up. These antonyms all contrast with "re-presentations," which indicate the act of presenting something again or representing it in a new way. Overall, understanding these antonyms provides a deeper understanding of the meaning and context of "re-presentations.