adj, verb ·Moderate ·College level

Definitions

Verb

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

Adjective

1. 1
   Appalled, annoyed, exhausted or disgusted.

   "He was flabbergasted at how much weight he had gained."

2. 2
   Damned. euphemistic, rare

Adjective

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

Synonyms

All synonyms

dumbfoundedsurprisedagapeaghastagogall agog

Example

More examples

"Everyone was just flabbergasted that she was able to get pregnant at 48."

Etymology

Past tense of flabbergast.

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