will have vacillated

• future perfect

  future perfect

  Used to describe an action that will be fully completed or achieved by a specific point 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