Forgoing the keen edge of my blade, I decided to bludgeon my assailant to death with my billy club instead.

Main Entry: keen
Pronunciation: (keen)
Function: adjective
Etymology: Middle English kene brave, sharp, from Old English cēne brave; akin to Old High German kuoni brave
Date: 13th century

*1 a : having a fine edge or point : sharp b : affecting one as if by cutting c : pungent to the sense
2 a (1) : showing a quick and ardent responsiveness : enthusiastic (2) : eager b of emotion or feeling : intense
3 a : intellectually alert : having or characteristic of a quick penetrating mind; also : shrewdly astute b : sharply contested c : extremely sensitive in perception
4 : wonderful, excellent

*Indicates meaning used in sentence.