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

This was a record-breaking 100 minutes of the world according to Trump — an address largely indistinguishable from a campaign-style speech. —Marc Caputo, Axios, 5 Mar. 2025

Another year, another Oscars, 97th in a series, presented live from the Dolby Theatre, on the former site of the Hollywood Hotel, structurally indistinguishable from Oscars that were — pandemic variations notwithstanding — and Oscars that will be. —Robert Lloyd, Los Angeles Times, 3 Mar. 2025

Instead, simply ask whether a controlling decision has held that the Feres doctrine barred suit under materially indistinguishable circumstances. —David Faris, Newsweek, 27 Feb. 2025

In her speech accepting the award, Grimes began by referencing a famous quote from Arthur C. Clarke in which the science fiction writer observes that advanced technology is indistinguishable from magic. —Simmone Shah, TIME, 11 Feb. 2025

Word History

First Known Use

1606, in the meaning defined above

Rhymes for indistinguishable

• distinguishable
• inextinguishable
• undistinguishable

Kids Definition

indistinguishable

adjective

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

: impossible to distinguish clearly