shaky

Trembling or quivering; tremulous.

Lacking soundness or sturdiness, as of construction.

Not to be depended on; precarious.

Wavering in firmness.

Open to question or doubt.

Disposed to shake or tremble; shaking; unsteady: as, a shaky hand.

Loosely put together; ready to come to pieces.

Full of shakes or cracks; cracked, split, or cleft, as timber.

Feeble; weak.