The term "un-blended" refers to something that is not mixed or combined. Its antonyms can be "blended", "mixed", "combined", "united", "merged", "intermixed", or "fused". These words are used to describe something that has multiple components, elements or ingredients that are well incorporated or combined. For instance, a blended coffee is one in which two or more types of coffee beans are mixed together to create a unique flavor. Similarly, a blended family refers to a group consisting of two families that have merged together, forming a new unit. Therefore, these antonyms are useful when describing something that is amalgamated or combined in some way.