astonished (part of speech: adjective)
amazed (part of speech: verb)
overran (part of speech: verb)
- His house was soon the centre of attraction to all foreigners, by whom she was overwhelmed with gifts. - "The Complete Historical Romances of Georg Ebers", Georg Ebers.
- You will excuse me, Father Rowley, but I am rather overwhelmed for the moment by your kindness. - "The Altar Steps", Compton MacKenzie.
- The man must have had some great hold over her; for she was certainly overwhelmed with deadly fear. - "By Wit of Woman", Arthur W. Marchmont.