GRAMMAR DETAIL
〜のももっともだ
Judges a person's feeling or reaction as entirely understandable in light of the circumstances.
Examples
長い間努力してきたのだから、彼が喜ぶのももっともだ。
After working hard for so long, it is only natural that he is pleased.
Words used
初めての仕事で不安になるのももっともだ。
It is understandable to feel anxious in your first job.
Words used
Study notes
1. Origins, structure, and basic meaning
- Structure: Nominalize a clause describing a feeling or reaction with
の, then addももっともだto judge it understandable in the circumstances. - Basic usage:
初めての仕事で不安になるのももっともだ。treats anxiety about a first job as an understandable reaction.
2. Common pitfalls and similar expressions
- Assessment of a reaction
不安になるのももっともだacknowledges the person's anxiety as understandable. Whereas不安になるはずだfocuses on expecting anxiety, this expression focuses on judging that reaction understandable.
- Distinction from superlative もっとも
- Here
もっともmeans reasonable or understandable. Distinguish it from最もin最も高い, which marks the highest degree.
- Here

