What does vacillation mean?
Vacillation is a formal noun meaning the act of wavering or hesitating, especially when a person is undecided between alternatives or when a policy or position repeatedly changes. It often implies indecision, instability, or lack of resolve, although the neutral sense simply names the movement itself. In ordinary conversation, “vacillation” sounds more elevated and analytical than “hesitation,” and it may suggest a repeated pattern rather than one brief pause. A writer might describe a leader’s vacillation between opposing policies, or use it to characterize the uncertain fluctuations of public opinion. The word is especially useful because it captures both the emotional and intellectual uncertainty of indecision and the visible movement that results from it. It also has a slightly formal, occasionally critical tone: repeated vacillation can make someone appear hesitant or unreliable. In careful prose, however, the term can remain descriptive rather than judgmental, emphasizing the shifting course of a decision.
nounThe act of wavering or hesitating, especially when undecided between different choices, courses of action, opinions, or positions.
- Wavering or hesitating when undecided between choices, courses of action, opinions, or positions.
- Repeated shifting or changing in policy, attitude, or public sentiment.
"After weeks of vacillation, the committee finally agreed on a course of action."
"His vacillation between accepting the offer and seeking another one delayed the decision."
"The minister faced criticism for his vacillation on the proposed reforms."
The plural is used for separate acts or instances of wavering, often in a person's decisions, policies, or changing position.
"The senator's repeated vacillations on the issue frustrated both parties."
Vacillation names the movement of a mind or policy that cannot settle: it is indecision you can almost see.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does vacillation come from?
Vacillation comes through Latin from vacillāre, meaning “to waver, hesitate, or totter,” and the Latin noun vacillātiō, meaning a wavering or hesitation. The English word developed in the early modern period with the sense of indecision or movement back and forth between alternatives. Related English forms include vacillate and vacillatory, all preserving the Latin idea of wavering.
How vacillation is actually used
Formal and usually somewhat elevated. It can be neutral and descriptive, but may also suggest weakness, instability, or an absence of resolve.