Definition

A person who causes a disturbance or changes the usual order of things, often leading to unexpected results.

Example

The underdog team became the upsetters of the tournament by defeating the champions.

Conversation

Did you hear about the game last night?

Yeah, it was such an upsetter when they won!

I know, right? I didn't expect them to beat the champions.

Me neither! It made the whole season so much more exciting.

Synonyms & Antonyms

Root Explanation

Upsetter → It is formed from "up" (meaning to a higher position) and "setter" (from the verb "set", meaning to place or put). The word "upsetter" refers to someone or something that causes an unexpected change or disturbance, often overturning the expected outcome.

Memory Tip

Think of someone who 'places' ('setter') something 'up' ('up') in a way that changes the usual situation — that's why an upsetter is someone who causes an unexpected change.

Visually Confused Words