He was flabbergasted to find that his work had been done for him before he began.
Source: wiktionary
Flabbergast
//ˈflæbə(ˌ)ɡɑːst//
Synonyms for "flabbergast" (88 found)
Ranked by relevance and common usage.
Closest matches (18)
Strong matches (26)
Related words (44)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
1 entriesSynonyms
21 entriesShowing 16 of 21 words.
derived
6 entriesderived from
1 entriesetymologically related_to
5 entriesmanner of
1 entriesrelated to
8 entriesTranslations
35 translations across 13 languages.
Bulgarian
2 entries- поразявам verb (to overwhelm with bewilderment)
- слисвам verb (to overwhelm with bewilderment)
Czech
1 entries- ohromit verb (to overwhelm with bewilderment)
Dutch
1 entries- verbluffen verb (to overwhelm with bewilderment)
Estonian
1 entries- pahviks lööma verb (to overwhelm with bewilderment)
Finnish
1 entries- ällistyttää verb (to overwhelm with bewilderment)
French
1 entries- époustoufler verb (to overwhelm with bewilderment)
German
4 entries- Erstaunen noun (overwhelming confusion, shock, or surprise — see also astonishment)
- Verblüffung noun (overwhelming confusion, shock, or surprise — see also astonishment)
- abschnallen verb (to overwhelm with bewilderment)
- aus allen Wolken fallen verb (to overwhelm with bewilderment)
Greek
4 entries- αφήνω άναυδο verb (to overwhelm with bewilderment)
- αφήνω εμβρόντητο verb (to overwhelm with bewilderment)
- καταπλήσσω verb (to overwhelm with bewilderment)
- σαστίζω verb (to overwhelm with bewilderment)
Hungarian
2 entries- elképeszt verb (to overwhelm with bewilderment)
- megdöbbent verb (to overwhelm with bewilderment)
Italian
4 entries- colpire verb (to overwhelm with bewilderment)
- impressionare verb (to overwhelm with bewilderment)
- sbalordire verb (to overwhelm with bewilderment)
- sorprendere verb (to overwhelm with bewilderment)
Norwegian Bokmål
1 entries- forbløffe verb (to overwhelm with bewilderment)
Russian
4 entries- изумля́ть verb (to overwhelm with bewilderment)
- изумѝть verb (to overwhelm with bewilderment)
- ошара́шить verb (to overwhelm with bewilderment)
- поража́ть verb (to overwhelm with bewilderment)
Swedish
1 entries- förbluffa verb (to overwhelm with bewilderment)
Sample sentences
17 total sentences available.
Her stupidity flabbergasts me, and I have to force myself to keep a straight face while she explains her beliefs.
Source: wiktionary
The oddity of the situation was so flabbergasting I couldn’t react in time for anyone to see it.
Source: wiktionary
Now we are flabbergaſted and bored from morning to night—in the ſenate, at Cox's muſeum, at Ranelagh, and even at church.
Source: wiktionary
Showing 4 of 17 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.