acumen Meaning, Definition & Usage

  1. noun a tapering point
  2. noun shrewdness shown by keen insight
    insightfulness.

WordNet

A*cu"men noun
Etymology
L. acumen, fr. acuere to sharpen. Cf. Acute.
Definitions
  1. Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination. Selden. Syn. -- Sharpness; sagacity; keenness; shrewdness; acuteness.

Webster 1913