のみならずNot only ... but also ...
のみならず formally says that something is true not only of A, but also of an added B. It is strongly associated with reports, essays, public statements, and prepared speeches.
How the addition works
A presents the first person, area, quality, action, or result; B then extends the same claim. B is not a correction or an alternative: both A and B are included. The two sides should therefore be easy to understand as parallel additions.
Nouns and clauses
The construction can connect two noun-based areas or add one complete claim to another.
技術面のみならず、運用面でも改善が必要である。
Improvements are needed not only on the technical side but also on the operational side.
Analyze新しい手法は精度が高いのみならず、処理時間も短い。
The new method is not only accurate but also has a short processing time.
Analyzeこの計画は現実的であるのみならず、将来の拡張にも対応している。
This plan is not only realistic but also accommodates future expansion.
AnalyzeMarking the added item
The added B commonly contains も. This makes the additive relationship especially clear, though the exact particle depends on B's role in the sentence.
A report-style example
調査では利用者の満足度が上がったのみならず、問い合わせ件数も減少した。
The survey found not only that user satisfaction had risen, but also that the number of inquiries had decreased.
AnalyzeThe two sides present parallel results of the survey.
Choosing among close alternatives
だけでなく is the ordinary everyday choice for simple “not only A but also B.” ばかりでなく is also additive but is generally less formal than のみならず. Use にとどまらず when the important idea is expansion beyond a boundary or domain rather than straightforward addition.
More examples
参加者のみならず、運営スタッフも安全講習を受けなければならない。
Not only the participants but also the event staff must receive safety training.
Analyze本製品は国内のみならず、海外でも高い評価を得ている。
This product is highly regarded not only domestically but also overseas.
Analyzeこの提案は実現可能であるのみならず、費用対効果も高い。
This proposal is not only feasible but also cost-effective.
Analyzeこの政策は地域経済を支えるのみならず、若者の雇用創出にも寄与する。
This policy not only supports the regional economy but also contributes to creating jobs for young people.
Analyze報告書は問題点を指摘するのみならず、具体的な改善策も提示している。
The report not only identifies the problems but also presents specific measures for improvement.
Analyze新制度は業務を効率化するのみならず、部門間の情報共有も促進する。
The new system not only makes operations more efficient but also promotes information sharing between departments.
Analyze