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Synonyms

unaccountable

American  
[uhn-uh-koun-tuh-buhl] / ˌʌn əˈkaʊn tə bəl /

adjective

  1. impossible to account for; unexplained; inexplicable.

    The boat has an unaccountable tendency to yaw.

    Synonyms:
    unintelligible, mysterious, inscrutable, incomprehensible
  2. exempt from being called to account; not answerable.

    As a subordinate, he is unaccountable for errors in policy.

    Synonyms:
    irresponsible, unanswerable

unaccountable British  
/ ˌʌnəˈkaʊntəbəl /

adjective

  1. allowing of no explanation; inexplicable

  2. puzzling; extraordinary

    an unaccountable fear of hamburgers

  3. not accountable or answerable to

"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 unaccountable

First recorded in 1635–45; un- 1 + accountable

Explanation

People, especially those in leadership positions, are described as unaccountable when they behave as though they don't need to explain themselves, answer to anyone else, or take responsibility for their actions. We often complain about the need for "accountability" when our leaders spend our money, oversee our wars, or make confusing new laws without explaining to us what's going on. If there's nothing in place to keep them from being corrupt, we say that they are "unaccountable." Another interesting definition of unaccountable is "unexplainable." Crop circles, Big Foot sightings, and unidentified flying objects are mysterious and unaccountable.

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Vocabulary lists containing unaccountable

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.

See Examples For:

One important proposal: Let parents who choose to expose their wannabe-elite athlete children to unaccountable authority figures, in pursuit of college athletic scholarships and Olympic glory, do so on their own dime.

From Salon Feb. 22, 2026

The Epstein files, and what they have revealed regarding a network of those apparently high in connections but low on morals, has left people feeling angry at such unaccountable power and wealth.

From BBC Feb. 19, 2026

Yet here, a single unaccountable administrator effectively outlawed an entire way of life for responsible therapists, guides and small businesses in Hawaii.

From The Wall Street Journal Oct. 10, 2025

They’re not wildly unaccountable, they are a part of the government.

From Slate Feb. 21, 2025

The courier, whom Longstreet did not recognize, saluted, then for some unaccountable reason took off his hat, stood bareheaded in the sun, yellow hair plastered wetly all over his scalp.

From "The Killer Angels: The Classic Novel of the Civil War" by Michael Shaara

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