will have been astonishing

• future perfect progressive

  future perfect progressive

  Used to describe a continuous action that will progress up until a designated point of completion in the future.

  of astonish.
  astonish

  verb (used with object)

  to fill with sudden and overpowering surprise or wonder; amaze.

Related Words

• amaze
• astound
• bewilder
• boggle
• confound
• daze
• dumbfound
• flabbergast
• overwhelm
• shock
• startle
• stun
• stupefy