Definition

The process of slowing down or reducing speed.

Example

The car's deceleration was noticeable as it approached the stop sign.

Conversation

Did you notice the deceleration when the bus approached the stop?

Yeah, it was pretty smooth; I almost didn't feel it at all.

I think a good deceleration helps passengers feel safe.

Absolutely, it's better than just slamming on the brakes!

Synonyms & Antonyms

Root Explanation

Deceleration is formed from "de-" (meaning down or away) and "celerare" (meaning to hasten or speed). The word describes the process of reducing speed or slowing down.

Memory Tip

Think of 'de-' meaning down or away, and 'celerare' meaning to speed up — deceleration is the act of slowing down.

Visually Confused Words