adj, verb ·3 syllables ·Moderate ·College level

Definitions

Verb

1. 1
   simple past and past participle of dumbfound form-of, participle, past

Adjective

1. 1
   Shocked and speechless.

Adjective

1. 1
   as if struck dumb with astonishment and surprise wordnet

Synonyms

All synonyms

flabbergastedamazedabashedabashedagapeaghast

Example

More examples

"When I heard it, I was dumbfounded."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.