in·​dis·​tin·​guish·​able | \ ˌin-di-ˈstiŋ-gwi-shə-bəl How to pronounce indistinguishable (audio) , -ˈstiŋ-wi-\

Definition of indistinguishable

: not distinguishable: such as
a : indeterminate in shape or structure indistinguishable forms in the mist
b : not clearly recognizable or understandable indistinguishable differences
c : lacking identifying or individualizing qualities seemingly indistinguishable alternatives

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Other Words from indistinguishable

indistinguishability \ ˌin-​di-​ˌstiŋ-​gwi-​shə-​ˈbi-​lə-​tē How to pronounce indistinguishability (audio) , -​ˌstiŋ-​wi-​ \ noun
indistinguishableness \ ˌin-​di-​ˈstiŋ-​gwi-​shə-​bəl-​nəs How to pronounce indistinguishableness (audio) , -​ˈstiŋ-​wi-​ \ noun
indistinguishably \ ˌin-​di-​ˈstiŋ-​gwi-​shə-​blē How to pronounce indistinguishably (audio) , -​ˈstiŋ-​wi-​ \ adverb

Examples of indistinguishable in a Sentence

indistinguishable differences that can be measured only electronically indistinguishable shapes in the fog

Recent Examples on the Web

For now, though, Donald Trump’s GOP remains indistinguishable from Paul Ryan’s. Eric Levitz, Daily Intelligencer, "Trump Has Not Transformed the Republican Party – Yet," 14 June 2018 The idea is to make your Mac indistinguishable from millions of others, muting the fingerprinting effect. Lily Hay Newman, WIRED, "Apple Just Made Safari the Good Privacy Browser," 4 June 2018 With few exceptions, Ms. Ngamhuy’s reproductions appear indistinguishable from living specimens. Michael Tortorello, New York Times, "A Lifelike Version of Nature, but Not to Scale," 8 May 2018 In the future, a conversation with a digital assistant will be indistinguishable from one with a person, according to Rohit Prasad. Laura Stevens, WSJ, "‘Alexa, Can You Be Empathetic, All-Knowing and Funny?’," 7 Mar. 2019 And by the time he was done, the government’s case looked statistically indistinguishable from roadkill. Felix Gillette,, "Get Ready for Big Media to Get Bigger After AT&T Victory," 13 June 2018 From a distance the Zero is indistinguishable from any other concours-quality, drop-dead gorgeous Series 1.5 roadster (with the covered headlamps), except for the absence of the low-slung dual exhaust pipes. WSJ, "1968 Jaguar E-Type Zero: Revamping the Vintage Roadster as an Electric Car," 5 Oct. 2018 From the outside, the U.S. Department of Agriculture’s laboratory in Beltsville, Md. is indistinguishable from any of the dozens of other federal facilities that dot the Washington D.C. suburbs. Andrew O'reilly, Fox News, "USDA kitten killing comes under fire from bipartisan group of lawmakers," 19 Sep. 2018 At that point, the survival rates in the two groups looked indistinguishable: Nine in 10 of the women who didn’t get chemo were still alive, as were nine in 10 of the women who got chemo. Julia Belluz, Vox, "Many breast cancer patients don’t need chemo, a precision medicine study just found," 5 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'indistinguishable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of indistinguishable

1606, in the meaning defined above

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Statistics for indistinguishable

Last Updated

27 Apr 2019

Look-up Popularity

Time Traveler for indistinguishable

The first known use of indistinguishable was in 1606

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More Definitions for indistinguishable



English Language Learners Definition of indistinguishable

: unable to be recognized as different : impossible to distinguish clearly from something else


in·​dis·​tin·​guish·​able | \ ˌin-di-ˈstiŋ-gwi-shə-bəl How to pronounce indistinguishable (audio) \

Kids Definition of indistinguishable

: impossible to recognize as different

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Comments on indistinguishable

What made you want to look up indistinguishable? Please tell us where you read or heard it (including the quote, if possible).


behavior toward others

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