ĭn-effĭcax, ācis, adj.,
I ineffectual , inefficient (post-Aug.).
α With gen.: vox inefficax verborum, unproductive of , unable to produce , Sen. Ira, 1, 3.—
β Absol. : ratio, Sen. Ira, 1, 10: dii, id. Ben. 4, 4.— Comp. , Plin. 34, 11, 25, § 109: parentes inefficacissimi, i. e. very weak , Inscr. ap. Grut. 415, 10.—Adv.: ĭneffĭcācĭter , ineffectually , in vain , Dig. 49, 8, 2; Cod. Just. 6, 35, 2; Symm. Ep. 6, 53.