Definition of "keenness" []

• Sharpness or cutting ability (noun)
• Astuteness or sagacity (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• ""John is still after the caves," and Harry laughed, as he recalled the keenness with which John had arranged the trips."
• "Love is frightened at the intervals of insensibility and callousness that encroach by little and little on the dominion of grief, and it makes efforts to recall the keenness of the first anguish."
• "For a moment he gazed around with that peculiar, all-observing keenness which is given to those whose lives are spent in countries where human habitation is sparse -- where the work of man is lost in the immensity of"