waffler

/ˈwɑflər/
noun
  1. A person who is indecisive or frequently changes their opinion.
    • The committee called him a waffler because he kept switching sides.
    • Don't be such a waffler—just tell us what you want to do.
    • In negotiations, a waffler can be frustrating to work with.
Antonyms
What does "waffler" mean? | whatsthatwordmean | whatsthatwordmean