Definition

A person who is indecisive and frequently changes their mind or opinion.

Example

She is a vacillator, often unable to choose between two options.

Conversation

I can't believe how much time you've spent deciding on a movie.

I know, I'm such a vacillator when it comes to choices.

You really should just go with what you feel like watching.

You're right, I should just pick something and enjoy it!

Synonyms & Antonyms

Root Explanation

Vacillator → It is formed from "vacillare" (meaning to sway or waver) and the suffix "-or" (indicating a person who performs an action). The word "vacillator" refers to a person who sways or wavers in their decisions or opinions.

Memory Tip

Think of someone who 'sways' ('vacillare') in their choices — that's why a vacillator is someone who can't make up their mind.

Visually Confused Words