Webster's Revised Unabridged Dictionary · 1913

Shaky

Shaky , adjective

1.
Shaking or trembling; as, a shaky spot in a marsh; a shaky hand. — Thackeray
2.
Full of shakes or cracks; cracked; as, shaky timber. — Gwilt
3.
Easily shaken; tottering; unsound; as, a shaky constitution; shaky business credit. [Colloquial]