missing in action /ˈmɪsɪŋ ɪn ˈækʃən/ adjective2 •The designation for a member of an organization (usually military) with whom contact is lost and whose whereabouts are not known, but whose death is not confirmed. •Not present when one is expected to be.He says that when pressed about why the money was missing in action, NAB [National Australia Bank] failed to provide an explanation and threatened to foreclose on the customer. — 2007
