What context can I use each word in?
Learn when and how to use these words with these examples!
decadal
Example
The census is conducted on a decadal basis. [decadal: adjective]
Example
The company's sales have increased over the past decadal period. [decadal: noun]
decennial
Example
The town celebrates its decennial festival with a parade and fireworks. [decennial: adjective]
Example
The company is planning a special event for its decennial anniversary. [decennial: noun]
Good things to know
Which word is more common?
Decadal is more commonly used than decennial in everyday language and formal contexts.
What’s the difference in the tone of formality between decadal and decennial?
Both decadal and decennial are formal words that are appropriate for use in academic, scientific, or legal contexts.