flabbergasted

1 affected with sudden and great wonder or surprise was flabbergasted when we heard she was moving out of the state Synonyms amazed, astonished, astounded, awestruck (also awestricken), bowled over, dumbfounded (also dumfounded), dumbstruck, thunderstruck, shocked, stunned, stupefiedRelated Words blindsided, startled, surprised (also surprized); aghast, appalled, dismayed, horrified; bewildered, confused, dazed, overwhelmed; agape, awed, awesome, openmouthed, wide-eyed, widemouthedNear Antonyms blasé (also blase), casual, nonchalant, unruffled

2 filled with amazement or wonder responded to the news of his arrival with a flabbergasted gasp Synonyms amazed, astonished, astounded, awed, awestruck (also awestricken), dumbfounded (also dumfounded), openmouthed, marveling (or marvelling), wonderingRelated Words startled, surprised (also surprized); bemused, bewildered, puzzled; overwhelmed, staggered, stunned, stupefiedNear Antonyms unimpressed; disinterested, incurious, indifferent, unconcerned, uninterested; dispassionate, emotionless, impassive, unemotional; bored, jaded