1. Not able to be discerned, perceived, or distinguished; imperceptible
The differences between the two paintings were indiscernible to the naked eye.
As diferenças entre os dois quadros eram indiscerníveis a olho nu.
2. Impossible to see or perceive clearly; obscure
In the fog, the figures became indiscernible.
Na névoa, as figuras ficaram indiscerníveis.
3. Unable to be distinguished or differentiated from something else
His handwriting was indiscernible from his brother's.
Sua letra era indiscernível da de seu irmão.