Main Entry: un·ac·count·able

Pronunciation: \ˌən-ə-ˈkau̇n-tə-bəl\

Function: adjective

Date: 1643

1 : not to be accounted for : inexplicable, strange
2 : not to be called to account : not responsible

— un·ac·count·abil·i·ty \-ˌkau̇n-tə-ˈbi-lə-tē\ noun