N1 Cause, Reason, and Basis

~は〜てのことだ: meaning, usage and examples

~は〜てのことだ means: it's because of... that...

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. 彼かれが成功せいこうしたのは、長年ながねんの努力どりょくがあってのことだ。

   His success came from many years of hard work.

2. 田中たなかさんが会社かいしゃを辞やめたのは、家族かぞくのことを考かんがえてのことだ。

   Mr. Tanaka quit his job because he was thinking of his family.

3. 鈴木すずきさんが黙だまっていたのは、皆みなに心配しんぱいをかけまいと思おもってのことだった。

   Ms. Suzuki kept quiet because she did not want to worry everyone.

4. 今回こんかいの値上ねあげは、原料げんりょう費ひの高騰こうとうを受うけてのことです。

   This price increase is a response to the sharp rise in raw material costs.

When to use it

Explains the real reason or motive behind something that has happened, "it is because of X that..." The topic is usually an action or result (彼かれが成功せいこうしたのは, 辞やめたのは), and the て-form gives the cause or the intention. Example: 彼かれが会社かいしゃを辞やめたのは、家族かぞくを思おもってのことだ (he quit because he was thinking of his family).

Nuance

Neutral to formal. It often defends someone's action by revealing a good motive, or gives credit for a success. Typical verbs are 考かんがえて, 思おもって, 〜があって, 〜を受うけて. It explains past or present facts, not future plans.

Compare

ためだ / からだ is the plain way to give a reason: 辞やめたのは家族かぞくのためだ. てのことだ stresses the background or motive. あっての links two nouns directly: 努力どりょくあっての成功せいこう. ばこそ also stresses a reason but is more literary: 思おもえばこそ言いうのだ.

Tip: Look for the frame 〜のは〜てのことだ. The part before のは is the result; the て-form is the hidden reason.