The word "de-finitenesses" does not have any commonly recognized antonyms as it is a compound noun derived from "definiteness". However, the word "indefiniteness" could be seen as an opposite to "definiteness" which refers to a lack of clear definition or specificity. Other possible antonyms could include "uncertainty", "ambiguity", "vagueness", or "imprecision". These words describe the opposite of clear and concise language, which is what "definiteness" represents. While "de-finitenesses" itself may not have antonyms, there are many words that convey the opposite meaning of establishing boundaries and definitiveness in communication.