THUNDERSTRUCK
dumbfounded, dumfounded, flabbergasted, stupefied, thunderstruck, dumbstruck, dumbstricken
(adjective) as if struck dumb with astonishment and surprise; “a circle of policemen stood dumbfounded by her denial of having seen the accident”; “the flabbergasted aldermen were speechless”; “was thunderstruck by the news of his promotion”
Source: WordNet® 3.1
Etymology
Adjective
thunderstruck (comparative more thunderstruck, superlative most thunderstruck)
Astonished, amazed or so suddenly surprised as to be unable to speak.
Synonyms
• (astonished): amazed, astonished, astounded, awed, overawed, overwhelmed, speechless, stupefied, surprised
Source: Wiktionary
THUNDERSTRIKE
Thun"der*strike`, v. t. [imp. Thunderstruck; p. p. Thunderstruck, -
strucken (; p. pr. & vb. n. Thunderstriking.]
1. To strike, blast, or injure by, or as by, lightning. [R.] Sir P.
Sidney.
2. To astonish, or strike dumb, as with something terrible; -- rarely
used except in the past participle.
drove before him, thunderstruck. Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition