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undiscernable
Derived word form of discernible

Example Sentences

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Hence, condensation, if it takes place, is thin, and perhaps often undiscernable.

From The Philosophy of the Weather And a Guide to Its Changes by Butler, Thomas Belden

And some of those energies are weak and obscure, others hid or undiscernable, othersome greater and of a larger projection.

From Democritus Platonissans by More, Henry

While yet an unweaned infant I made numerous observations on the Milky Way, and when learning to walk frequently saw stars undiscernable with the most powerful telescope.

From Punchinello, Volume 1, No. 26, September 24, 1870 by Various

In Oenothera the main stem is prolonged upwards beyond the fan; in the others the main stem is lacking or at least undiscernable, but this feature manifestly is only of secondary importance.

From Species and Varieties, Their Origin by Mutation by Vries, Hugo de