The antonyms for the phrase "putting ice" can be replacing it with "removing ice" or "melting ice." These two antonyms create opposite meanings to the original phrase. When you remove ice, the object or substance previously frozen will no longer be cool or iced, but rather at room temperature. On the other hand, melting ice means allowing it to thaw, resulting in the formation of liquid water. Choosing the right antonym of putting ice will depend on the context of the situation. For example, if you want to preserve the coolness of a drink, removing ice may not be the best option, whereas melting ice may be more suitable in a situation where you want to dilute a drink.