Nervous, anxious.
Easily shaken; tottering; unsound.
Shaking or trembling.
Wavering; undecided.
Full of shakes or cracks; cracked.
Restless; disturbed by pain, anxiety
I've been uneasy about your friend ever since I met him. Are you sure we can trust him?
Not easy; difficult.
Causing discomfort or constraint
Not easy in manner; constrained