Definition

Something that lasts for ten years.

Example

The decadelong project finally came to an end after many challenges.

Conversation

Did you hear about that decadelong project to clean up the river?

Yeah, it’s impressive how much they've accomplished over the years.

I know! It really shows the impact of sustained effort.

Absolutely, and it's great for the community too.

Synonyms & Antonyms

Root Explanation

Decadelong is formed from "decade" (from Latin "decas", meaning ten) and "long" (from Old English "lang", meaning of great duration). The word describes a period of ten years in duration.

Memory Tip

Think of a 'decade' as a period of 'ten' years, and 'long' means it lasts for that entire time.

Visually Confused Words