DUMFOUND Meaning of DUMFOUND in English dumfound BrE AmE ( ˌ ) dʌm ˈfaʊnd ˈ•• ▷ dumfound|ed ɪd əd ▷ dumfound|ing ɪŋ▷ dumfound|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012