Wiktionary
draughtless
a. Without draughts (air currents).
Usage examples of "draughtless".
In that draughtless vehicle they sat, full of who knows what contempt of age for youth.
The graciously shaped windows each frame a picture—since they are draughtless the window seats are no mere mockeries as are the window seats of earth—and on the sill, the sole thing to need attention in the room, is one little bowl of blue Alpine flowers.