indiscernible

[ in-di-sur-nuh-buh l, -zur- ]

/ ˌɪn dɪˈsɜr nə bəl, -ˈzɜr- /

not discernible; that cannot be seen or perceived clearly; imperceptible.

Origin of indiscernible

First recorded in 1625–35; in-³ + discernible

in·dis·cern·i·ble·ness, in·dis·cern·i·bil·i·ty, noun in·dis·cern·i·bly, adverb

His eyes and nose were gone—in fact his features were indiscernible—but he was not mortally injured.

The Story of the Trapper |A. C. Laut
He had no notion of the time; the golden hands of his watch were indiscernible in the gloom.

The Return |Walter de la Mare
His way lay across a range of hills, the road over which was so blocked up with snow as to leave all trace of it indiscernible.

Stories about the Instinct of Animals, Their Characters, and Habits |Thomas Bingley
By the time sexual maturity is attained the dorsal pattern often is indiscernible or represented only by faint traces.

Natural History of the Racer Coluber constrictor |Henry S. Fitch

For at first he had lain outstretched on the ground, hidden and indiscernible, like those who lie in wait for swamp-game.

Thus Spake Zarathustra |Friedrich Nietzsche

indiscernible

/ (ˌɪndɪˈsɜːnəbəl) /

incapable of being discerned

scarcely discernible or perceptible

indiscernibleness or indiscernibility, noun indiscernibly, adverb