a feeling of very great surprise synonym amazement To my utter astonishment, she remembered my name. He stared in astonishment at the stranger. See related entries: SurpriseExtra examples He expressed astonishment at the results. She could not hide her astonishment. She gazed at him in astonishment. Then, to my great astonishment, he started to cry. a look of blank astonishment an air of mild astonishment To my utter astonishment, she remembered my name.