will have been vacillating

• 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 vacillate.
  vacillate

  verb (used without object)

  to waver in mind or opinion; be indecisive or irresolute.

Related Words

• dither
• fluctuate
• oscillate
• seesaw
• waffle
• waver