torpidness

The creature appeared to be unalert; its movements were sloth-like; yet the girl knew that if Phil once ventured an inch too close, or slipped, or tried to dodge past it to the sphere, its torpidness would vanish and it would have him.

At its first appearance it was warmly praised, in the Champion, probably either by Fielding, or by Ralph, who succeeded to him in a share of that paper; and Sir Joshua Reynolds, when it came into his hand, found his attention so powerfully arrested, that he read it through without changing his posture, as he perceived by the torpidness of one of his arms that had rested on a chimney-piece by which he was standing.