How to convert negated na-adjectives to adverbs?


I know when I want to use a な-adjective as an adverb then we have to use に
particle instead of な. For example:

> 簡単{かんたん} **に** 説明{せつめい}しました。

But I'm curious how to use negated な-adjectives as adverbs. Maybe just should
I put the に particle the end of the negated な-adjective? Something like this:

> 簡単{かんたん} **じゃ ない に** 説明{せつめい}しました。




In general, you cannot do this. 簡単じゃないに or (more grammatically correct) 簡単じゃなく
is odd in your sentence.

You would have to use antonyms: 簡単に説明した → 詳細に説明した.




In general, you cannot do this. 簡単じゃないに or (more grammatically correct) 簡単じゃなく
is odd in your sentence.

You would have to use antonyms: 簡単に説明した → 詳細に説明した.

