Definition

The property of an object that makes it resist changes in its state of motion, meaning it will stay still or keep moving in the same direction unless something else pushes or pulls it.

Example

The car's inertia caused it to continue moving forward even after the driver hit the brakes.

Conversation

Have you ever thought about how inertia affects our daily lives?

Definitely! It's interesting how we resist change even when we know it's good for us.

Right? Sometimes I feel like my inertia keeps me from trying new things.

I get that. Breaking out of that comfort zone can be tough!

Synonyms & Antonyms

Root Explanation

Inertia → It is formed from "in-" (meaning not) and "ertia" (from Latin "ars", meaning art or skill). The word describes a state of not having the skill or ability to change motion, hence the tendency of an object to remain at rest or in uniform motion unless acted upon by an external force.

Memory Tip

Think of 'not' ('in-') having the 'skill' ('ertia') to change motion — that's why inertia means the tendency to remain in the same state.

Visually Confused Words