numberlessness

And this effect of surface is not necessarily an effect of material or colour; the evenness, monotony, and vastness of a great curtain of colour produce an effect which is that of the extreme of uniformity in the extreme of multiplicity; the eye wanders over a fluid infinity of unrecognizable positions, and the sense of their numberlessness and continuity is precisely the source of the emotion of extent.

The Sense of Beauty Being the Outlines of Aesthetic Theory George Santayana 1907

As Oken says, "The ideal zero is absolute unity; not a singularity, as the number one, but an indivisibility, a numberlessness, a homogeneity, a translucency, a pure identity.

The Destiny of the Soul A Critical History of the Doctrine of a Future Life William Rounseville Alger 1863