trembling or shaking with a slight rapid motion.

incapable of being fully explored or understood.

in a careful or cautious manner.

frown in an angry or bad-tempered way.

in a casually calm and relaxed manner.

moving around in a confused mass.

the quality or state of being aloof, distant, or reserved; indifference:

Bad-tempered and combative.

Give a slight involuntary grimace or shrinking movement of the body out of or in anticipation of pain or distress.

Unwilling or unable to believe something