sublight adj.

The crew prepared for the blackout that always occurred when the drive passed from supra-light to sub-light speed.

They were in the eight-minus level, apparently. Later, when he found a reference to the manufacture of radioactives, he quickly revised it to six-minus, knowing that these people were on the verge of Newtonian sub-light space travel.

The shells have to be hypered themselves, of course, or they would revert to sublight velocity and be left behind as soon as they emerged from the drive field.

Port Abell just received an FTL probe saying that he was approaching the system at maximum sub[-]light speed.

A sublight message?… Now what?

A very archaic type, Captain. Sublight space.

A typical battle maneuver consists of several minutes or hours of complex evasive patterns of the warp in the stress field, interrupted by a sudden unwarping—with the ship bouncing off in a totally unexpected direction and at sublight speed—followed by the almost immediate launching of its missiles.

I urged the massive beast into sublight movement.

The kzinti hurled a sublight fleet out of Alpha Centauri at variable intervals, but years apart, since one way or another they always lost heavily in the sanguinary campaigns that followed.

Spock heard the familiar crackle of sublight communications.

When people from the Wheah made the slow sublight journey through the Tongue they—obviously—chose its narrowest point.