5
nonplussed(verb, adjective)
5
perplexed(verb, adjective)
5
startled(verb, adjective, amazed, thunderstruck)
4
tongue-tied(adjective, awkward, silent, dazed, dumb)
4
dumbstricken
4
awestruck(adjective, amazed, thunderstruck)
4
baffled(verb, adjective)
4
inarticulate(adjective, awkward, silent, dazed, dumb)
4
staggered(verb, adjective, amazed, thunderstruck)
4
staring(adjective, astonished)
3
agog
3
bemused
3
dismayed(verb, adjective, amazed, thunderstruck)
3
dumb(adjective, shaky, faint, confused, silent)
3
fascinated(adjective, astonished)
3
floored(verb, adjective)
3
gobsmacked(adjective, overcome, amazed, astonished, speechless)
3
marveling(adjective, astonished)
3
mute(adjective, awkward, silent, dazed, dumb)
3
openmouthed
11 years ago|7.6k views|share |citing 
APASmart Define. (2015). dumbfounded thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dumbfounded/thesaurus/synonyms
ChicagoSmart Define. 2015. "dumbfounded thesaurus" https://smartdefine.org/dumbfounded/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, dumbfounded thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dumbfounded/thesaurus/synonyms>.
MLASmart Define. "dumbfounded thesaurus" 3 August 2015. Web. 22 September 2026. <https://smartdefine.org/dumbfounded/thesaurus/synonyms>