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[uhn-uh-koun-tuh-buh l] /ˌʌn əˈkaʊn tə bəl/
impossible to account for; unexplained; inexplicable:
The boat has an unaccountable tendency to yaw.
exempt from being called to account; not answerable:
As a subordinate, he is unaccountable for errors in policy.
Origin of unaccountable
1635-45; un-1 + accountable
Related forms
unaccountableness, unaccountability, noun
unaccountably, adverb
1. incomprehensible, inscrutable, mysterious, unintelligible. 2. unanswerable, irresponsible. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for unaccountable
Contemporary Examples
Historical Examples
  • There was much amazement and some anger in the minds of the two noblemen, that the priest had acted in so unaccountable a manner.

    The Fifth of November Charles S. Bentley
  • The unaccountable change in Eudora's character perplexed and troubled her.

    Philothea Lydia Maria Child
  • I hate to be on ill terms with you; it seems monstrous, unaccountable.

    The Whirlpool George Gissing
  • It made a body feel creepy, it was so curious and unaccountable.

    Tom Sawyer Abroad Mark Twain (Samuel Clemens)
  • I did ask for it; but for some unaccountable reason or other, I didn't get it.

British Dictionary definitions for unaccountable


allowing of no explanation; inexplicable
puzzling; extraordinary: an unaccountable fear of hamburgers
not accountable or answerable to
Derived Forms
unaccountableness, unaccountability, noun
unaccountably, adverb
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
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Word Origin and History for unaccountable

1640s, "inexplicable," from un- (1) "not" + accountable. Meaning "not liable to be called to account" is recorded from 1640s. Related: Unaccountably.

Online Etymology Dictionary, © 2010 Douglas Harper
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