adv. (UN-1 11; cf. prec.)
1630. Camdens Hist. Eliz., II. 117. Two famous Pilots sought as vnprosperously to discouer a neere way to East-India.
1650. Jer. Taylor, Holy Living, ii. § 6. 153. When a Prince fights justly, and yet unprosperously.
1663. Boyle, Usef. Exp. Nat. Philos., II. i. 10. It is possible to be safely made, though many have but unprosperously attempted it.
1848. Thackeray, Van. Fair, lvii. Her life, begun not unprosperously, had come down to a long ignoble bondage.
1876. Miss Yonge, Womankind, xxxii. Love affairs come early and unprosperously.