Definition

Relating to a period of ten years or a decade.

Example

The decadal report showed significant changes in climate patterns.

Conversation

Have you seen the decadal report on climate change?

No, I haven't. What's it about?

It highlights some major changes over the last ten years.

That sounds interesting! I should definitely check it out.

Synonyms & Antonyms

Root Explanation

Decadal is formed from "dec-" (meaning ten) and "-al" (meaning relating to). The word refers to something that is related to a period of ten years.

Memory Tip

Think of 'dec-' meaning ten, and '-al' indicating a relation — so decadal refers to something that relates to a ten-year period.

Visually Confused Words