waverer
US /ˈweɪvərər/
UK /ˈweɪvərər/

1.
hésitant, indécis
a person who is unable to decide between two opinions or courses of action; an irresolute person.
:
•
He was a waverer, always changing his mind about which political party to support.
C'était un hésitant, changeant toujours d'avis sur le parti politique à soutenir.
•
The committee was full of waverers, making it difficult to reach a consensus.
Le comité était plein d'hésitants, ce qui rendait difficile d'atteindre un consensus.