Decanted is a term used primarily to describe the process of transferring a liquid from one container to another. When we think about antonyms for the word "de-canted," words that come to mind are perhaps loaded, filled, and poured. While decanting typically involves slowly pouring a liquid from one container to another, an antonym like filled implies that one is filling up a container until it's full. Loaded is a synonym for filled, although it maybe refers to packing in something or the weight of something. Finally, pour is also an antonym of decanted but denotes a much faster and direct method.