Astonished, amazed or so suddenly surprised as to be unable to speak.
1927-29 — Mohandas Gandhi, An Autobiography or The Story of my Experiments with Truth, Part V, The Fast, translated 1940 by Mahadev Desai
'Unless the strikers rally,' I declared to the meeting, 'and continue the strike till a settlement is reached, or till they leave the mills altogether, I will not touch any food.' The labourers were thunderstruck.