only 1 use
(click/touch triangles for details)
- Oh, not for the lesson in it, not for the high-falutin, falling mind organizing itself to swim or fly with ease searching out the dire vacuity: not for that: for thisness: twenty-four geese enroute from swamp to swamp, encountering a dome at twilight, passing and touching an unseen mark; they freeze, fall out of time and into thought, an idiograph in the blood of man and son.5 — Hunting Wild Asses (50% in)
There are no more uses of "vacuous" in The Sunlight Dialogues.
Typical Usage (best examples)