SHY, adjective

1. Fearful of near approach; keeping at a distance through caution or timidity; shunning approach; as a shy bird.

She is represented in a shy retiring posture. Addison.

2. Reserved; not familiar; coy; avoiding freedom of intercourse.

What makes you so shy, my good friend? Arbuthnot.

3. Cautious; wary; careful to avoid committing one's self or adopting measures.

I am very shy of using corrosive liquors in the preparation of medicines.

Boyle.

4. Suspicious; jealous.

Princes are by wisdom of state somewhat shy of their successors. Wotton.