事務 じむ文書 ぶんしょ よう言語 げんごじゃないです
jimubunshoyō gengojanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 事務文書用言語

1. It's not business language.; It's not for official documents.

Negative
Polite
Casual Register
Computing