The phrase "puts through" typically means to facilitate or make something happen, often in a prompt or efficient manner. Some antonyms for this phrase might include terms like obstruct, hinder, deter or impede. If someone is trying to put through an important phone call, for example, an obstacle to this might be a busy signal or a lack of network connectivity. In business or financial contexts, putting through a transaction might involve several steps or processes, such as verifying the identity of the parties involved or ensuring that funds are available. Antonyms for this might include terms like cancel, reverse, or block.