Shaky
Part of speech: adjective
Definition: Shaking or trembling. Full of shakes or cracks; cracked. Easily shaken; tottering; unsound.
Example sentence: My thoughts about God are vague and abstract. My connection with the energy of the universe is shaky.
Trembling
Part of speech: verb
Definition: To shake, quiver, or vibrate.
Example sentence: On this thin, scarcely real and yet so perceptible sensation the whole world hung as on a faintly trembling axis, and this in turn rested on the two people in the room.