[f. as prec. + -NESS.] Mental sharpness, shrewdness, or cunning; also, shrillness.
1653. H. More, Conject. Cabbal. (1713), 133. But what an insipid and unsatisfactory Arguteness there is in such Conceptions.
1683. Dryden, Life Plutarch, 118. This [writer] tickles you by starts with his arguteness.
1822. Hazlitt, Men & Mann., II. i. (1869), 16. A certain arguteness of voice.