fenceful adjective 1noun 1forms 3 adjective1 •(no longer used) Affording defense; defensive.But of all the modern Historians there is not anyone has writ with a greater observance of the fenceful Character, than Mariana in his History of Spain. — 1680 noun1 •As many as make up or line a fence.Yes, they were as dry and inflammable as one would expect; I had only to drop a match among them and the whole fenceful would flare up — and perhaps half the Riverina as well. — 1968 formsfencefuls · more fenceful · most fenceful