Advanced and Proficiency Vocabulary for Exams(e.g.GRE, Banks, Civil Services, SAT / LSAT). For IELTS/TOEFL, and everyday spoken vocabulary, go to our Spoken Vocabulary Database.
If something were to ‘dumbfound’ you, it would leave you shocked or bewildered, perhaps even to the extent that you are temporarily lost for words. It is also possible for a person to dumbfound you through something they have said or done. The term can be used in both a positive and negative context.
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I was left dumbfounded by the accusations leveled at me. They came completely out of left field.
Claire is a wonderful singer. Her talent will dumbfound you.
We have pumped so much money into this project, which is why the continued setbacks are so dumbfounding to me!