I.unfruitful (post-Aug.).
II. Trop., fruitless, useless: “preces,” Plin. Ep. 8, 23: “epistula,” Sen. Contr. 3, 19 fin.: “militia,” Tac. H. 1, 51.— Adv.: infructŭōsē , fruitlessly, uselessly, Hier. Ep. 12, n. 16; Aug. Ep. 67, n. 6.—Comp., Sid. Ep. 1, 9.