The slaughter of the British troops, utterly unprotected though brave and gallant, was terrible, and they were repulsed.

and, if he is able to get up, leave him comparatively unprotected.

Why did he want Hill's assistance to burgle a practically unprotected house?

It is produced by the unprotected surface of one bone grinding against the similarly unprotected surface of another.

The ascent was terribly hard work for the camels, and, as the track is totally unprotected by guard-rail of any kind, anything but comfortable for their riders.