Affected with sudden astonishment or amazement.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "thunderstruck" in a sentence
"Given the book's meteorological theme, "thunderstruck" is probably the best fit."
"As the left field screen proclaimed during the top of the 9th inning, the Rangers were "thunderstruck"."
"If the word "thunderstruck" did justice in any degree to the state of mind which we wish to describe we would gladly use it, but it does not."