will have been terrifying

• 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 terrify.
  terrify

  verb (used with object)

  to fill with terror or alarm; make greatly afraid.

Related Words

• alarm
• awe
• dismay
• frighten
• horrify
• intimidate
• petrify
• shock
• startle
• stun
• terrorize