Definitions:

1. A person who is indecisive or hesitant and tends to waver between different opinions or actions. NOUN
   • The vacillator's indecisiveness hindered the team's progress.
2. One who hesitates, usually out of fear. NOUN
   • Despite his talents, being a vacillator prevented him from becoming a strong leader.
   • We don't allow vacillators in management.
3. Refers to a person who habitually wavers or is indecisive, often struggling to make decisions or commitments. NOUN
   • He was a notorious vacillator, never able to commit to a single course of action.
4. Refers to those who fluctuate in their loyalties, moods, or behavior. NOUN
5. Used to describe someone who has difficulty making decisions, often changing their mind due to uncertainty or doubt. NOUN
   • The vacillator's constant wavering between two solutions frustrated everyone.

Synonyms:

• flip-flopper
• hesitater
• hesitator
• relativist
• waverer