Re-purchase refers to the act of buying something that one has previously bought or owned. The antonyms for the word re-purchase include sell, dispose, discard, get rid of, relinquish, surrender, and abandon. These words denote the opposite of buying repeatedly or again. When one decides to sell or dispose of an item, it implies that they no longer have the intention or need to buy it again. Discarding or abandoning, on the other hand, implies getting rid of something due to being unwanted or having lost its value. Hence, antonyms for re-purchase are words that connote relinquishment or abandonment rather than repetition or continuity of ownership.