flabbergastedly

• a word derived from flabbergasted.
  flabbergasted

  adjective

  overcome with surprise and bewilderment; shocked; astonished.

Related Words

• astonished
• awed
• baffled
• befuddled
• dazed
• mystified
• perplexed
• puzzled
• rattled
• shocked
• startled
• stunned
• surprised