1) Agog 2) Amazed 3) Astonied 4) Astounded 5) Awed 6) Big-eyed 7) Bugeyed 8) Confused 9) Gobsmacked 10) Horrified 11) Inawe 12) Stunned 13) Surprised 14) Thunderstruck 15) Wide-eyed 16) Widemouthed 17) Wowed 18) Bugeyed 1) Amazed 2) Astonied 3) Astounded 4) Bewildered 5) Bowled over 6) Dumbfounded 7) Flabbergasted 8) Knocked for six 9) Open-mouthed 10) Shocked 11) Staggered 12) Startled 13) Stunned 14) Surprised 15) Taken aback 
• (imp. & p. p.) of Astonish
filled with the emotional impact of overwhelming surprise