The overpowering emotion excited when something unaccountable, wonderful, or dreadful is presented to the mind; an intense degree of surprise; amazement.

The object causing such an emotion.

the feeling that accompanies something extremely surprising; "he looked at me in astonishment"

Dismay; consternation.

The condition of one who is stunned. Hence: Numbness; loss of sensation; stupor; loss of sense.