The antonyms for the phrase "made distinction" are blended, confused, combined, mixed, merged, and unified. These are the terms used to describe situations where the differences between things are not emphasized or discerned. For instance, blended refers to two or more things mixed together in such a way that they become indistinguishable. Confused, on the other hand, describes a state of disorientation, where distinguishing characteristics have become lost. Similarly, merged and unified denote situations where two previously separate elements have combined to form a cohesive whole. In general, antonyms for the phrase "made distinction" point to a lack of clarity and differentiation between things.