Definition

To move back and forth between different opinions or actions without making a firm decision.

Example

She tends to vacillate between going to the party and staying home to study.

Tense Forms

Conversation

I'm really having a hard time choosing between the two movies tonight.

I get that; I always vacillate when I'm faced with options.

Right? I just can't decide if I want to see the action film or the comedy.

Maybe just flip a coin — that could help end the vacillate!

Synonyms & Antonyms

Root Explanation

Vacillate → It is formed from "vacillare" (Latin, meaning to sway or waver) and the suffix "-ate" (indicating a verb). The word "vacillate" means to sway back and forth in opinion or action, reflecting indecision.

Memory Tip

Think of someone 'swaying' or 'wavering' in their choices — that's what it means to vacillate.

Visually Confused Words