open-mouthed Synonyms

waiting with bated breath flabbergasted lost for words taken aback dumbfounded knocked out awestruck awestricken wonderstruck thunderstruck dumbstruck gobsmacked wide-eyed filled with awe filled with astonishment filled with amazement filled with wonder blown away in shock round-eyed in amazement popeyed surprised stupefied stunned breathless benumbed awed avid astounded astonished amazed agog aghast confounded dazed excited startled staggered speechless shocked nonplussed jolted goggle-eyed gaping floored agape