taken aback Synonyms

dumbfounded stunned startled staggered speechless shocked remorseful puzzled perplexed open-mouthed stupefied surprised red-faced awestruck bemused at a loss disoriented unready unmanned thunderstruck thrown mystified mortified impressed confused confounded bewildered baffled astonished ashamed amazed aghast agape dazed discomfited humbled goggle-eyed flabbergastation embarrassed dumfounded dismayed discountenanced disconcerted discomposed abashed