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unintelligible

American  
[uhn-in-tel-i-juh-buhl] / ˌʌn ɪnˈtɛl ɪ dʒə bəl /

adjective

  1. not intelligible; not capable of being understood.

    Synonyms:
    undecipherable, baffling, incomprehensible

unintelligible British  
/ ˌʌnɪnˈtɛlɪdʒɪbəl /

adjective

  1. not able to be understood; incomprehensible

"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

Etymology

Origin of unintelligible

First recorded in 1610–20; un- 1 + intelligible

Explanation

Something unintelligible is difficult to understand, either because the room is too noisy or because the unintelligible thing is too quiet or confusing. We use our intelligence to understand things, and something intelligible is easy to understand. Therefore, unintelligible things are hard to understand. A coded message is unintelligible if you don't know the code. A whisper in a loud room is unintelligible. A weird sentence like "The waffles ran away from the Easter basket" is unintelligible because it doesn't make any sense. If you can't hear or understand something, it's unintelligible (and probably frustrating too).

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Vocabulary lists containing unintelligible

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.

Paul Pinto's "Unintelligible Response," which followed, concerns Thomas Paine, whom the composer described as "the lowliest of our Founding Fathers, but the most fascinating."

From Los Angeles Times • Feb. 22, 2015

Unintelligible or repulsive in large ways, Pound did have that gift of the ear.

From Slate • Feb. 14, 2012

Unintelligible words followed—a man’s voice, the door was shaken.

From Roumanian Stories Translated from the Original Roumanian by Various

Unintelligible, or not easily intelligible; as, a blind passage in a book; illegible; as, blind writing.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

Unintelligible murmuring, and then: "D'you know who it was that invented stopping and passing the time of day?" said the nearing voice of Mr. V.V., gayer than Cally Heth had ever heard it.

From V. V.'s Eyes by Harrison, Henry Sydnor