What it means
のみならず means “not only A but also B” and adds emphasis that B is an additional, often notable fact. It is a formal connective commonly used in reports, essays, news, and presentations. It can follow nouns, plain-form verbs, and i-adjectives; na-adjectives normally use であるのみならず.
Usage note
のみならず is considerably more formal than だけでなく and is uncommon in casual conversation. The part after のみならず is often marked with も, though this is not required in every sentence.
How to use it
この制度は学生のみならず、教員にも利用されています。
This system is used not only by students but also by teachers.
この地域は安全であるのみならず、交通も便利です。
This area is not only safe but also has convenient transportation.
この製品は軽いのみならず、耐久性も高いです。
This product is not only lightweight but also highly durable.
研究チームは原因を調べたのみならず、改善案も提案しました。
The research team not only investigated the cause but also proposed an improvement plan.
この制度は学生のみならず、教員にも利用されている。
This system is used not only by students but also by teachers.
この地域は安全であるのみならず、交通も便利だ。
This area is not only safe but also has convenient transportation.
この製品は軽いのみならず、耐久性も高い。
This product is not only lightweight but also highly durable.
研究チームは原因を調べたのみならず、改善案も提案した。
The research team not only investigated the cause but also proposed an improvement plan.
Example sentences
この奨学金は学費を支援するのみならず、海外研修の費用も補助する。
This scholarship not only supports tuition fees but also subsidizes the costs of overseas training.
この新しい駅は地域の交通を改善するのみならず、周辺の商業も活性化させると期待されている。
This new station is expected not only to improve transportation in the area but also to revitalize commerce in the surrounding area.