Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
was dumbfounded
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'was dumbfounded' is correct and usable in written English.
You can use it to indicate that someone was extremely surprised and/or shocked by something. Example: Lucy was dumbfounded when she saw the incredible cake her friend had made for her birthday.
✓ Grammatically correct
News & Media
Alternative expressions(17)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
Mr. Wolpow was dumbfounded.
News & Media
He was dumbfounded.
News & Media
Everyone was dumbfounded.
News & Media
Acosta was dumbfounded.
News & Media
Landrigan was dumbfounded.
News & Media
"Really?" Ira was dumbfounded.
News & Media
The man was dumbfounded.
News & Media
At first I was dumbfounded.
Leiter was dumbfounded.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
They were dumbfounded.
News & Media
The Carrs were dumbfounded.
News & Media
Expert writing Tips
Best practice
Use "was dumbfounded" to vividly portray a character's reaction to an unexpected or shocking event. This phrase is most effective when emphasizing the character's temporary inability to process what has happened.
Common error
While "was dumbfounded" is acceptable, it can sometimes sound informal. In professional or academic writing, consider using alternatives like "was astonished" or "was greatly surprised" for a more sophisticated tone.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was dumbfounded" functions as a past tense verb phrase, typically acting as the predicate of a clause. It describes a state of being surprised to the point of speechlessness. Ludwig confirms this usage with numerous examples.
Frequent in
News & Media
98%
Academia
1%
Formal & Business
1%
Less common in
Science
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "was dumbfounded" is a commonly used and grammatically sound phrase to express a high degree of surprise and shock. Ludwig AI confirms its validity. While suitable for most contexts, more formal alternatives may be preferable in academic or professional writing. The phrase is most frequently found in news and media sources, effectively conveying the impact of unexpected events on individuals. Consider using synonyms like "was astonished" or "was stunned" to fine-tune the intended meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
was flabbergasted
Suggests a state of extreme surprise and bewilderment.
was speechless with surprise
Expresses an inability to speak due to unexpectedness.
was stunned
Implies being temporarily unable to react due to surprise.
was thunderstruck
Implies a sudden and overwhelming shock or surprise.
was astonished
Emphasizes surprise and amazement, similar to being dumbfounded.
was bowled over
Conveys being overwhelmed by surprise or shock.
was amazed
Focuses on a feeling of great surprise and wonder.
was taken aback
Indicates being surprised and slightly disconcerted.
couldn't believe it
Expresses disbelief and astonishment at something unexpected.
was shocked
Highlights the feeling of sudden surprise and distress.
FAQs
How can I use "was dumbfounded" in a sentence?
Use "was dumbfounded" to describe someone's reaction to something incredibly shocking or surprising. For example, "She "was dumbfounded" when she won the lottery".
What are some synonyms for "was dumbfounded"?
Alternatives include "was astonished", "was amazed", "was stunned", and "was flabbergasted". The best choice depends on the specific nuance you want to convey.
Is "was dumbfounded" appropriate for formal writing?
While grammatically correct, "was dumbfounded" leans towards informal. Consider using alternatives like "was astounded" or "was taken aback" in formal contexts.
What's the difference between "was dumbfounded" and "was surprised"?
"Was surprised" indicates a general feeling of unexpectedness. "Was dumbfounded" implies a stronger reaction, suggesting the person was so shocked they were temporarily unable to speak or react. The difference is intensity.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested