2
nonplussed
2
open-mouthed(adjective, amazed, astonished, horrified, astounded)
1
dumbstricken
1
agape(beat, confused, amazed, astonished, astounded)
1
browbeaten
1
disconcerted
1
perplexed(verb, adjective)
1
spellbound
1
at a loss for words(expression, adjective, idiom, speechless, overwhelmed)
1
enraptured
1
enravished
1
enthralled
1
entranced
1
flummoxed
1
flustered
1
gaping
1
gauping
1
gazing
1
gob-smacked(adjective, amazed, thunderstruck)
1
gobsmacked(adjective, overcome, amazed, astonished, speechless)
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APASmart Define. (2015). flabbergasted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/flabbergasted/thesaurus/synonyms
ChicagoSmart Define. 2015. "flabbergasted thesaurus" https://smartdefine.org/flabbergasted/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, flabbergasted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/flabbergasted/thesaurus/synonyms>.
MLASmart Define. "flabbergasted thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/flabbergasted/thesaurus/synonyms>