strengthless

Schloss Runkelstein—grey, blind, strengthless—still keeps the valley.

He raised his strengthless hand for a few inches, and let it fall with a gesture of hopeless wretchedness.

The stout lady, strengthless and breathless, was lying in a chair, the jewel-case clasped laxly with one arm.

One wonders if two, being met among the "strengthless tribes of the dead," would find much more to say.

"Aye—" She bowed her head, a strengthless despair weighting it down.