nonaccountable

adjective
non·​ac·​count·​able | \ ˌnän-ə-ˈkau̇n-tə-bəl How to pronounce nonaccountable (audio) \

Definition of nonaccountable

1 : not accountable or answerable legally nonaccountable
2 : not required to be accounted for nonaccountable expenses : not requiring something to be accounted for a nonaccountable expense plan

First Known Use of nonaccountable

1824, in the meaning defined at sense 1

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