JMdict: 1583610

不用心 【ぶようじん】

  1. [adj-na,n] insecurity; carelessness
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
Negative, Non-, Bad, Ugly, Clumsy フ, ブ 4
Utilize, Business, Service, Use, Employ ヨウ もち.いる 2
Heart, Mind, Spirit, Heart Radical (no. 61) シン こころ, -ごころ 2