Ok, sure.
I found two definitions and still you are not satisfied........and it is not directed at me.......but apparently my response......so please O Swami tell us all WTH mean.
It is usual to utilize the primary (first) definition of a word.....you originally picked the meaning from a word I did not use
feckless (within the context of my sentence....ie that is the most feckless response ...) means powerless, ineffectual, lacking in vitality