口語体

こうごたい

colloquial style; written style based on spoken language

noun

Example sentences

その引用（いんよう）した文章（ぶんしょう）からわかると思（おも）うけど、口語体（こうごたい）で書（か）かれた本（ほん）です。

I expect you can tell from the quoted text, but this is a book written in a colloquial style.