'Quick-wittedness' definitions:

Definition of 'quick-wittedness'

noun

Intelligence as revealed by an ability to give correct responses without delay [syn: mental quickness, quickness, quick-wittedness]

From: GCIDE

Quick-wittedness \Quick"-wit`ted*ness\, n. Readiness of wit. "Celtic quick-wittedness." --M. Arnold. [1913 Webster]