unaccountable

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

adjective

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

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

OTHER WORDS FROM unaccountable

un·ac·count·a·ble·ness, un·ac·count·a·bil·i·ty, noun un·ac·count·a·bly, adverb

Example sentences from the Web for unaccountable

British Dictionary definitions for unaccountable

unaccountable
/ (ˌʌnəˈkaʊntəbəl) /

adjective

allowing of no explanation; inexplicable
puzzling; extraordinary an unaccountable fear of hamburgers
not accountable or answerable to

Derived forms of unaccountable

unaccountableness or unaccountability, noun unaccountably, adverb