Subterraneanness

This subject has been investigated experimentally in order to obtain so far as possible a means of expressing mathematically the relative “subterraneanness” of various species of noctuid larvae.

Source: wiktionary

And the Earth itself, that “feminine symbol” par excellence, with all her subterraneanness, her apparent immutability, would she be anything more than a pedestal which permits you to stand up straight?

Source: wiktionary

The play is The Lower Depths, and it’s being performed, aptly, in a basement. But apart from this subterraneanness, you may not recognize Maxim Gorky’s monument to romantic naturalism, draped as it is in buffoonery, chaos, and lurid colors.

Source: wiktionary

The subterraneanness, both physical and mental, enfolds its value, as a geode its flash, and that is where this visitor at least is going to leave it.

Source: wiktionary