indistinguishable

adjective

in·​dis·​tin·​guish·​able ˌin-di-ˈstiŋ-gwi-shə-bəl 

-ˈstiŋ-wi-

: not distinguishable: such as

a

: lacking identifying or individualizing qualities

seemingly indistinguishable alternatives

b

: not clearly recognizable or understandable

indistinguishable differences

c

: indeterminate in shape or structure

indistinguishable forms in the mist

indistinguishability

ˌin-di-ˌstiŋ-gwi-shə-ˈbi-lə-tē 

-ˌstiŋ-wi-

noun

indistinguishableness

ˌin-di-ˈstiŋ-gwi-shə-bəl-nəs 

-ˈstiŋ-wi-

noun

indistinguishably

ˌin-di-ˈstiŋ-gwi-shə-blē 

-ˈstiŋ-wi-

adverb

Synonyms

• impalpable
• imperceptible
• inappreciable
• insensible

Examples of indistinguishable in a Sentence

indistinguishable differences that can be measured only electronically

indistinguishable shapes in the fog

Recent Examples on the Web

And to him attention is indistinguishable from will because that ability to focus is the essence of will. —Sean Illing, Vox, 1 Feb. 2025

This is because sexes that are indistinguishable seems to correlate with monogamy, and the Barbary macaques are the opposite of monogamous. —Jonathan Granoff, Newsweek, 29 Jan. 2025

Can often write as well as humans, and can produce images and videos that look and feel indistinguishable from reality. —New York Daily News Editorial Board, New York Daily News, 1 Jan. 2025

Some are too bitter or earthy, while others are basically indistinguishable from fruit juices or sodas. —Caroline Tien, SELF, 27 Jan. 2025

Word History

First Known Use

1606, in the meaning defined above

Kids Definition

indistinguishable

adjective

in·​dis·​tin·​guish·​able ˌin-dis-ˈtiŋ-gwish-ə-bəl 

: impossible to distinguish clearly