shaky

adjective

1. 1

   not secure; beset with difficulties

   a shaky marriage

2. 2

   inclined to shake as from weakness or defect

   a rickety table

   a wobbly chair with shaky legs

3. 3

   vibrating slightly and irregularly; as e.g. with fear or cold or like the leaves of an aspen in a breeze

   a quaking bog

   the quaking child asked for more