"Their faces were indistinguishable in the dark and their white outfits were muted by the lack of sunlight, but I could see that they were little boys running away from something—or someone" (45). Use context clues in the sentence to write a definition of indistinguishable in your own words. (L.8.5b)

In my own words, "indistinguishable" means "something that cannot be easily differentiated and identified from another"

From the sentence, indistinguishable means that "their faces could not be easily identified in the dark" and "their white outfits were not identifiable due to the lack of sunlight".

So, we see that indistinguishable means when something cannot easily be spotted from another thing due to the similarities they bear.