Try Our Apps


The Best Internet Slang


[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
Related forms
indiscernibleness, indiscernibility, noun
indiscernibly, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for indiscernible
Historical Examples
  • He had no notion of the time; the golden hands of his watch were indiscernible in the gloom.

    The Return Walter de la Mare
  • 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
  • We could almost say, not only the same power, but the same sort of power, is indiscernible in Haydn and Mozart.

  • Control was full of people; Air Force brass, technicians, observers, enlisted men of indiscernible purpose.

    Sound of Terror Don Berry
  • His eyes and nose were gone—in fact his features were indiscernible—but he was not mortally injured.

  • We do not show it in the drawing, as it would be indiscernible, coming very close to A′ X.

  • The trail was like a softened stripe; footprints might be there, merged into the pattern till they were indiscernible.

    Bulldog Carney W. A. Fraser
  • 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.

  • By the time sexual maturity is attained the dorsal pattern often is indiscernible or represented only by faint traces.

  • Between lips that stirred so little their movement must have been indiscernible, he asked: "Who?"

    Alias The Lone Wolf Louis Joseph Vance
British Dictionary definitions for indiscernible


incapable of being discerned
scarcely discernible or perceptible
Derived Forms
indiscernibleness, indiscernibility, noun
indiscernibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for indiscernible

1630s, from in- (1) "not, opposite of" + discernible. Related: Indiscernibly; indiscernibility.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for indiscernible

Few English speakers likely know this word

Word Value for indiscernible

Scrabble Words With Friends

Nearby words for indiscernible