When Does Astonishment Mean?

1a : a feeling of great surprise and wonder : the state of being astonished : amazement The garden's beauty filled me with astonishment.

What astonished means?

: feeling or showing great surprise or wonder : astounded, amazed … she awoke the next day astonished to find that she suffered no ill effects.—

What means the same as astonishment?

stunned, stupefied, surprised. (also surprized), thunderstruck.