kneeful noun 2adjective 1forms 3 noun2 •A blow with the knee.Get off or I'll let you have a kneeful right where you live. — 2011 •Enough to cover of fill a knee.But I still had a kneeful of saddle. — 1969 adjective1 •Prayerful.It's the thing to do after a thoughtful kneeful study of the case as put by John. — 2012 formskneefuls · more kneeful · most kneeful