The Collaborative International Dictionary
Matterless
Matterless \Mat"ter*less\, a.
Not being, or having, matter; as, matterless spirits.
--Davies (Wit's Pilgr.).Unimportant; immaterial. [Obs.]
Douglas Harper's Etymology Dictionary
matterless
late 14c., "insubstantial, immaterial, without physical substance," from matter (n.) + -less. From 1610s as "devoid of sense or meaning."
Wiktionary
matterless
a. 1 Without matter, void of matter 2 unimportant, irrelevant.
Usage examples of "matterless".
He let the Psychosphere wash over and through him, making small adjustments in its matterless structure.