日本語道場
Nihongo Dojo — N3 → N2
N2
~はもとより
~ wa motoyori
not to mention, needless to say
When to use it
Use ~はもとより in written or formal spoken Japanese to say "A goes without saying, and B as well" — you assert A as an obvious given, then add B as the more noteworthy point. It is the stiffer, more literary counterpart of ~はもちろん, and fits reports, proposals, and prepared remarks rather than casual talk. The second clause almost always carries も, まで, or さえ to mark the addition.
Formation
Examples
We're getting inquiries not just domestically but from overseas as well.
We fall behind competitors on price, needless to say, and on delivery time too.
Not to mention the president, every board member opposes this proposal.
We'll prepare the minutes in English, as well as the meeting materials of course.
We need to review not only our technical capability but even our sales structure.