vacuitous

The half-opened mouth, and consequently the vacuitous expression of countenance, the thickness of breathing, which sometimes could be heard across the room, and the nasal speech, all plainly indicated the difficulty she laboured under.

He took Miss Lynes to supper; he outshone himself in vacuitous small-talk during the whole time that the meal lasted ; he held undisputed possession of her during that hour especially dear to flirtation, between the time when supper ended and the departure of the guests.

The doing of an act which might not lawfully be done, is nugatory, ineffective and vacuitous.

On the one hand there will be vacuitous chambers and on the other hand too much air.