still more; especially; all the more
Emphasizes that something is felt or noticed more strongly due to a particular situation or contrast. Often used with words like 感慨, 思い, or 美しさ.
The autumn leaves are especially beautiful on a rainy day.
久しぶりに故郷に帰って、感慨もひとしおだった。
Returning to my hometown after a long time, I felt all the more emotional.
deeply moved; even more emotional
Usually written in kana; the kanji form 一入 is rare and may not be recognized by many readers.
Rare kanji spelling; learners should use the kana form.
Derived from 一 (ひと, 'one') and 入 (しお, an old counter for dyeing or soaking), originally referring to one more dip in dye to deepen the color. The modern adverbial sense developed from the idea of adding intensity.