Explanation
Means 'not only... but also'; the second noun is especially emphasized.
Formation
Noun1 + もさることながら + Noun2 + も
Detailed explanation
The grammar point 'Noun もさることながら Noun も' is used to express that both Nouns are true, important, or relevant. It can be translated as 'not only... but also' in English. However, among the two nouns, the one coming after もさることながら is more emphasized in comparison to the one before it.
Examples
Kare no kashou-ryoku mo saru koto nagara, dansu mo subarashii.
Not only his singing ability but also his dancing is wonderful.
Kono resutoran, aji mo saru koto nagara, saabisu mo subarashii.
At this restaurant, not only the taste but also the service is wonderful.
Kanojo no utsukushisa mo saru koto nagara, sono chisei mo miryoku-teki da.
Not only her beauty but also her intelligence is attractive.
Sono eiga, sutoorii mo saru koto nagara, ongaku mo subarashikatta.
In that movie, not only the story but also the music was wonderful.
Practice
Grammar content sourced from hanabira.org.