1) Agog 2) Amazed 3) Astonished 4) Awed 5) Bowled over! 6) Dumbfounded 7) Dumfounded 8) Gobsmacked 9) Inawe 10) Stupefied 11) Surprised 12) Thunderstruck 1) Dumbfounded 2) Dumfounded 3) Exclusively Saxon word 4) Exclusively Anglo word 5) Stupefied 6) Surprised 7) Thunderstruck 8) Word with Anglo-Saxon origins 9) Word of purely Anglo origin 
[Adjective] Very surprised.
[SAT terms] as if struck dumb with astonishment and surprise