A possible prefix for "keening" could be "un-" to create the word "unkeening," which could imply the absence or reversal of keening. A suffix that could work is "-ly" to form the word "keeningly," which could describe the manner in which someone is keening.
Keening is a wail in grief for a dead person
I am very good at keening in on certain things.-
A synonym for the keening could be wailing or lamenting.
The cast of The Keening - 1999 includes: Lumi Cavazos as Wood Nymph
The word "keening" can be found in the book "Hatchet" by Gary Paulsen. It appears in Chapter 13, when Brian is describing the sound of the wind in the trees as a keening noise.
keening
The cast of Keening Woman - 2012 includes: Mitsu Hana as Ling Ryan Lui as Hang Michelle Wai as Cotton
In Odrosal, Dwemer Training Academy
The cast of The Keening - 2011 includes: Vincent Coyle as Detective Boyle Damien McDevitt as Lewis Wilson Carleen Melaugh as Catherine Bradley
It's a short sword
a keening for BOAT! :D