一いっ心しんに

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に

Common wordJLPTN1Freq.FrequencyTop 100,000

Meanings

1

Describes doing something with complete focus and dedication, putting one's whole heart into it.

一いっ心しんに〈動どう詞し〉to do [verb] wholeheartedly/single-mindedly
彼かの女じょは一いっ心しんに祈いのっていた。
She was praying with all her heart.
一いっ心しんに働はたらくto work single-mindedly, devoting oneself entirely to the task
父ちちは家か族ぞくのために一いっ心しんに働はたらいた。
My father worked tirelessly and single-mindedly for the family.
一いっ心しんに見みつめるto gaze intently at something
子こ供どもは母はははの顔かおを一いっ心しんに見みつめていた。
The child gazed intently at his mother's face.

一いっ生しょう懸けん命めいN4
一生懸命 emphasizes exerting maximum effort, while 一心に stresses undivided focus and devotion of one's whole heart.
熱ねっ心しんN4
熱心 describes eager enthusiasm toward something, whereas 一心に highlights total mental concentration without distraction.
夢む中ちゅうN3
夢中 conveys being so absorbed that one forgets everything else, while 一心に focuses on the deliberate singleness of purpose behind an action.
ひたすらN1
ひたすら stresses relentless repetition of a single action, while 一心に stresses the wholehearted emotional commitment behind it.
ひとえにN1
一心に describes doing something with single-minded concentration, while ひとえに can express similar wholehearted sincerity but is often used in formal, humble requests.

一いっ心しんN1
一心 is the plain noun for 'one heart/mind,' while 一心に is its adverbial form used to modify a verb.

Adverbial form of 一心 (いっしん), from 一 (one) + 心 (heart, mind).