pĕr-ăcūtus, a, um, adj., very sharp.
I Lit.: falx, Mart. 3, 24, 5 (dub.).—
B Transf., of sound, very clear or penetrating : vox, Cic. Brut. 68, 241.—
II Trop., very keen , very acute , very penetrating : cum peracutus esset ad excogitandum, Cic. Brut. 39, 145: oratio, id. ib. 76, 264; id. Verr. 2, 2, 44, § 108.—Adv.: pĕrăcūtē , very sharply , very acutely , with great keenness : moveri, Cic. Ac. 1, 9, 35: peracute querebare, quod, etc., id. Fam. 3, 7, 2: reperisse, App. Mag. 34.