Dictionary.com
Thesaurus.com
Showing results for indiscernible. Search instead for undiscernably.
Synonyms

indiscernible

American  
[in-di-sur-nuh-buhl, -zur-] / ˌɪn dɪˈsɜr nə bəl, -ˈzɜr- /

adjective

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


indiscernible British  
/ ˌɪndɪˈsɜːnəbəl /

adjective

  1. incapable of being discerned

  2. scarcely discernible or perceptible

"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

Other Word Forms

  • indiscernibility noun
  • indiscernibleness noun
  • indiscernibly adverb

Etymology

Origin of indiscernible

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Whether it’s someone who’s too toned, too well traveled, too rich, or too symmetrical, the ones to beat are indiscernible from the ones to bot.

From Slate • Jan. 7, 2026

At close distances, the two sounds are almost indiscernible to the human ear.

From BBC • Apr. 10, 2025

The eggs failed to hatch and the contents of six of them were indiscernible.

From Scientific American • Jun. 9, 2023

“This looks so good,” the 33-year-old coos, flashing a grin indiscernible from her more cloying online characters.

From Los Angeles Times • May 26, 2023

What had begun as a nearly indiscernible trail near the barn had broadened into a well-trodden path.

From "Fablehaven" by Brandon Mull