adv. [UN-1 11. Cf. prec.] Uselessly, unprofitably.
1626. Ld. Conway, in Rushw., Hist. Coll. (1659), I. 231. Whereas divers jealousies have been raised in the House, that the Moneys have been expended unusefully.
a. 1680. Glanvill, Sadducismus (1681), I. 180. Such as will not unusefully nor unseasonably conclude this First Part.
1747. Phil. Trans., XLIV. 588. I thought it might not unusefully be joined with Alum.
1799. E. Du Bois, Piece Family Biog., I. 111. He is not unusefully occupied.
1885. Manch. Exam., 12 Jan., 5/1. Prudent men might discharge such functions not unusefully.