4
unsurprised
3
nonchalant
1
blasé
1
casual
1
unruffled
11 years ago|41 views|share |citing 
APASmart Define. (2015). dumbstruck thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dumbstruck/thesaurus/antonyms
ChicagoSmart Define. 2015. "dumbstruck thesaurus" https://smartdefine.org/dumbstruck/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, dumbstruck thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dumbstruck/thesaurus/antonyms>.
MLASmart Define. "dumbstruck thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/dumbstruck/thesaurus/antonyms>