[nq:1]I are a engineer. Is there an adjective form of the word decade?Not that I know of. I want to describe something that happens only once in ten years.[/nq] "Decennial(ly)"
"Al Smith" (Email Removed) schrieb im Newsbeitrag [nq:2]Not that I know of. "Decennial(ly)"[/nq] [nq:1]OO! There it is.[/nq] It's an obscure word, though. Unless you can be sure that you will be understood, I'd suggest saying "every ten years".