- Definitions|1
- Thesaurus|222
- Abbreviations|0
| nonplussed | |
| open-mouthed(adjective, amazed, astonished, horrified, astounded) | |
| dumbstricken | |
| agape(beat, confused, amazed, astonished, astounded) | |
| browbeaten | |
| disconcerted | |
| perplexed(verb, adjective) | |
| spellbound | |
| at a loss for words(expression, adjective, idiom, speechless, overwhelmed) | |
| enraptured | |
| enravished | |
| enthralled | |
| entranced | |
| flummoxed | |
| flustered | |
| gaping | |
| gauping | |
| gazing | |
| gob-smacked(adjective, amazed, thunderstruck) | |
| gobsmacked(adjective, overcome, amazed, astonished, speechless) |
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| APA | Smart Define. (2015). flabbergasted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/flabbergasted/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "flabbergasted thesaurus" https://smartdefine.org/flabbergasted/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, flabbergasted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/flabbergasted/thesaurus/synonyms>. |
| MLA | Smart Define. "flabbergasted thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/flabbergasted/thesaurus/synonyms> |