shakiness
1. [ noun ] a shaky motion
Synonyms: trembling tremor quiver quivering vibration palpitation shaking
Examples:

"the shaking of his fingers as he lit his pipe"

Related terms: motion tremolo tremor tremble quiver tremble
2. [ noun ] the quality of being unstable and insecure
Synonyms: ricketiness
Examples:

"the shakiness of the present regime"

Related terms: instability
Similar spelling:   shagginess
  shaking
  Shaughnessy