Synonyms of 'dumbfounded'
in the sense of bewildered
Some shoppers look bewildered by the variety of goods on offer.
at sixes and sevens,
thrown off balance,
in the sense of confused
lacking a clear understanding of something
People are confused about what they should eat to stay healthy.
in the sense of flabbergasted
I am amazed and flabbergasted by what happened.
in the sense of flummoxed
The leaders were flummoxed by the suggestion.
in the sense of nonplussed
Patricia was totally nonplussed by Coyne's behaviour.
in the sense of speechless
unable to be expressed in words
Alex was speechless with rage and despair.
in the sense of staggered
I was simply staggered by the heat of the Argentine high-summer.
in the sense of stunned
When they told me she had gone missing I was totally stunned.
in the sense of thunderstruck
amazed or shocked
I was thunderstruck - it was like magic!
bowled over (informal),
gobsmacked (British, slang),
rooted to the spot,
knocked for six (informal)
Thesaurus for dumbfounded from the Collins English Thesaurus