unacquired

The new study compared patient experiences and outcomes at 246 hospitals acquired from 2009 through 2013 with similar data from 1,986 unacquired control hospitals.

As is stated to have happened in the Google acquisition that made news on Secret in Spring 2014: The Secret Shame of an Unacquired Tech Worker.

That is bold indeed given all the Asians who currently huddle around their televisions and mobile devices for the latest news from England’s Premier League; bold in light of cricket’s enduring hold on South Asia; bold when some Asian nations switch television coverage from color to black and white when blood flows too freely; bold when M.M.A. remains an unacquired taste in the world’s two most populous nations: China and India.

Unacquired, un-a-kwīrd′, adj. not acquired or gained.—adj.

Thanks to my love of study, your Majesty," modestly suggested the prime minister, "I have mastered the only language you have left unacquired, which happens to be Arabic.