要因
よういん
youin
JLPT N1nounVocabularyLevel 99 - JLPT N1
Quick answer
要因 (よういん (youin)) means "Factor". Use this page for pronunciation, example sentences, and related kanji.
Meaning
Factor
Also : main cause · primary cause
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Example Sentences
その事件の主要因は、コミュニケーション不足だった。
そのじけんのしゅよういんは、こみゅにけーしょうぶそくだった。
The main cause of the incident was lack of communication.
Kanji in this word
Grammar to study at this level
- [Noun/Verb dictionary form] + に際して～に際して (ni saishite) - On the occasion of
- [Noun] + をもとに(して)～をもとに (wo moto ni) - Based on
- [Noun/Verb dictionary form] + にあたって～にあたって (ni atatte) - When doing; Upon
- [Plain form verb/adjective] + ものの～ものの (mono no) - Although; Even though
- [Verb/Adjective/Noun] + にしろ/にせよ～にしろ／にせよ (ni shiro/ni seyo) - Even if; Regardless of
Last updated Jun 11, 2026
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