0
nonplused(beat, confused, amazed, astonished, astounded)
0
not saying boo(expression, idiom, astonished, thunderstruck)
0
numb
0
out of countenance(expression, idiom, humility)
0
overawed(verb, adjective, overcome, scared, frightened)
0
overpowered
0
overthrown(adjective, speechless, overwhelmed, overawed)
0
overturned
0
paralysed
0
reserved(astonished, thunderstruck)
0
resigned
0
run-over(adjective, speechless, overwhelmed, overawed)
0
silent(astonished, thunderstruck)
0
struck dumb
0
stuck(beat, confused, amazed, astonished, astounded)
0
swamped(adjective, speechless, overwhelmed, overawed)
0
taciturn(astonished, thunderstruck)
0
taken(adjective, speechless, overwhelmed, overawed)
0
tight-lipped(astonished, thunderstruck)
0
tongue-tied(astonished, thunderstruck)
11 years ago|7.6k views|share |citing 
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>