1. ((肯定文で)) much[still] more;((否定文で)) much [still] less
    • 弟子の作品があれほど立派なのだから,ましてやその師の作品はもっと立派だったに違いない
    • If the disciple's work is so splendid, his teacher's (work) must have been much more so.
    • 彼女は言葉遣いも知らないし,まして行儀など知るはずがない
    • She does not even know how to speak properly, let alone how to behave./She doesn't even know polite language, 「much less [to say nothing of] good manners.