The antonyms for the word "pro-positioned" are words that mean the opposite of being proposed or suggested. One such antonym is "opposed," which implies being against a proposal or suggestion rather than in favor of it. Another antonym is "rejected," which suggests not accepting the proposal or suggestion at all. Additionally, "ignored" could be seen as an antonym, as it implies not giving any consideration to the proposal. Finally, "withdrawn" could be seen as an antonym, suggesting the proposal or suggestion has been taken back and is no longer being considered.