adj. Mentally alert and sharp; keen.
Is wittedness a word?
adj. having wit or wits (usu. used in combination): quick-witted; dull-witted. wit′ted•ness, n.
What is quick wittedness?
English Language Learners Definition of quick-witted
: having or showing the ability to think and understand things quickly. See the full definition for quick-witted in the English Language Learners Dictionary.