unacquirable

He had that indefinable, unacquirable faculty for making money, and he became a commanding figure in the financial world.

Laughing Bill Hyde and Other Stories Rex Ellingwood Beach 1913

Having dressed herself therefore in becoming style, for dress was one of the instincts of the girl -- an unacquirable gift, not necessarily associated with anything noble -- in the daintiest, brightest little bonnet, a well-made, rather gay print, boots just a little too _auffallend_, and gloves that clung closer to the small short hand than they had to cling to the bodies of the rodents from which they came, she set out for her visit.

Weighed and Wanting George MacDonald 1864