Indistinguishable from is a phrase that is used to describe two things that look alike or are very similar to each other. Some synonyms for this phrase could include identical to, similar to, the same as, or impossible to tell apart from. Other possible synonyms could be interchangeable with, virtually indistinguishable from, or practically identical to. All of these synonyms convey the idea that two things are so similar that they appear to be the same or are difficult to tell apart. Whether you are describing two people, objects, or ideas, these synonyms will help you to convey the notion that they are nearly identical in appearance or purpose.