Flabbergast Synonyms and Antonyms

Overcome with amazement
To overwhelm with surprise, wonder, or bewilderment
  1. expect
To cause to be overcome with astonishment; astound.
  1. surprise

Words Related to Flabbergast

Related words are words that are directly connected to each other through their meaning, even if they are not synonyms or antonyms. This connection may be general or specific, or the words may appear frequently together.