N353/219

ことなの

Verb (dictionary form) + ことなのい-adjective (short form) + ことなのな-adjective + な + ことなのNoun + の + ことなの

Meanings

  • It is that A is described as A
  • A means that A’s description is true
  • used to explain or confirm what something is or why something is the case
  • used for clarification or emphasis about a fact or situation

About this pattern

Explanation

ことなの is a casual form of ことなのだ, used when you want to explain, justify, or confirm a situation, often with a nuance of seeking or presenting an explanation. It can express a conclusion about a fact, or raise a clarifying point in conversation. It’s common in conversations with friends or in casual writing. The phrase tends to point to the reason or nature of something and can carry a subtle sense of assurance or expectation.

Learn in context

Example sentences

彼が来ないのは、約束を忘れていたことなの。

The reason he isn’t coming is that he forgot the promise.

この機械が壊れた。つまり、修理が必要なことなの。

This machine is broken. In other words, it needs repairs.

彼女は休みなのか、それとも仕事なのか分からないことなの。

I’m not sure whether she’s off today or has to work.

この手紙は本当に重要なことなの。早く読んでください。

This letter is really important. Please read it quickly.

今日は特別な日だ。だから会場の準備を早く進めることなの。

Today is a special day. Therefore, we should hurry with the preparations for the venue.