なおさら

Japanese Grammar Advanced Japanese ★★★ 3/5 neutral なおさらnaosara
読み なおさら
ローマ字 naosara
形 Condition/Reason + なおさら + Predicate

意味

An adverb meaning 'all the more' or 'even more so,' indicating that the degree of something increases due to an additional factor or condition. It expresses that a situation that was already notable becomes even more pronounced.

なおさら builds on an existing condition to say that an additional factor makes the situation intensify. The pattern is typically: 'A is already X, and if/because of B, it is なおさら X.' It differs from もっと, which is a neutral comparative, because なおさら specifically signals that something was already true and an added circumstance pushes it further. It pairs naturally with conditional forms (～たら/～ば/～と) and reason clauses (～から/～ので). In formal writing, the kanji form 尚更 may appear. A common colloquial variant is ましてや when leading into 'let alone.'

例文

  1. 初めての海外旅行で、しかも一人となると、なおさら不安が募る。
  2. 雨の日は気分が沈みがちだが、寒い日が重なるとなおさらだ。
  3. 経験者でも苦戦するのだから、初心者にはなおさら難しいだろう。

使い方ガイド

場面: spoken, written, everyday

トーン: emphatic

正しい言い方

  • 好きな仕事であれば、なおさら努力を惜しむべきではない。
  • 子供にとって難しいなら、大人にとってもなおさら複雑に感じるかもしれない。
  • 信頼関係があるからこそ、嘘をつかれたらなおさら傷つく。

避ける言い方

  • なおさら天気がいい。(Using なおさら without any preceding condition that intensifies the situation) → 昨日もいい天気だったが、今日は風もなく、なおさら過ごしやすい。
  • なおさら走った。(Using なおさら without establishing what makes the running 'even more' of something) → 遅刻しそうだったので、なおさら急いで走った。

起源と歴史

なおさら combines なお (still, further) with さら (additionally, anew), both classical adverbs. Together they express a compounding effect — something that was already the case becomes 'still more so,' a construction documented since the Kamakura period.

文化的背景

世代: All ages

社会的背景: Universal

関連フレーズ

つい An adverb meaning 'unintentionally' or 'inadvertently,' used when someone does something without meaning to or without being able to control the impulse. It conveys that the action happened against the speaker's better judgement or awareness. なお An adverb with two primary functions: indicating that a state or action is still continuing ('still'), and serving as a conjunctive adverb to add supplementary information ('furthermore' or 'additionally'). Both uses are common in formal writing. なるほど An adverb meaning 'indeed,' 'I see,' or 'that makes sense,' used when the speaker acknowledges and affirms the correctness or reasonableness of something they have just heard or realised. It signals understanding and agreement. あえて An adverb meaning 'dare to' or 'deliberately,' used when the speaker chooses to do something despite knowing it may be difficult, risky, or contrary to expectations. It conveys a sense of resolve or intentional defiance of the easier or more conventional path. あくまでも An adverb meaning 'to the very end,' 'strictly,' or 'nothing more than,' used to express unwavering persistence in an attitude or to limit the scope of a statement. It conveys the speaker's firm stance that something will not change regardless of circumstances. いかに An adverb meaning 'how' or 'how much,' used to emphasise the degree or manner of something. It is more formal and literary than どんなに or どれほど and frequently appears in written Japanese and speeches. およそ An adverb with two main uses: as an approximation marker meaning 'approximately' or 'roughly,' and as a totality marker meaning 'at all' or 'utterly' when used with negatives. It adds a formal, measured tone to statements. さぞ（かし） An adverb meaning 'surely,' 'no doubt,' or 'I can only imagine,' used when the speaker empathetically infers that someone must be experiencing a strong emotion or condition. It expresses sympathetic conjecture about another's feelings.
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