Kumi logo
    Kumi

    Learn Japanese. Where understanding folds into fluency.

    Dictionary

    KanjiKanji vocabularyKana vocabularyKanaRadicalsGrammarJLPT N5

    Learn

    GuidesStart where you areWhat is KMT?RoadmapFAQ

    Connect

    EmailDiscordInstagramThreadsTikTokYouTubeLinkedInBlueskyX

    Newsletter

    Start learning free →

    Free forever tier. No card required.

    © 2026 Kumiai Inc. All rights reserved.

    AboutFAQContactStatusPrivacyTermsAttributions
    Dictionary
    1. Dictionary
    2. Kanji Vocab
    3. 鬼になる

    鬼になる

    鬼おにに​な​る​

    to harden one's heart

    NTVerbEmotions & PsychologyKanji Vocab18 strokes

    おにになる

    Verb

    1.
    to harden one's heart, to steel oneself, to be ruthless
    idiomatic expression
    2.
    to become "it" (in hide-and-seek, etc.)

    Stroke 0 / 18

    Speed1.0x

    Characters that make up this word

    鬼
    おに・おに-…(1)
    ghost・devil
    Kanji
    に
    ni
    Kana
    な
    na
    Kana
    る
    ru
    Kana
    Kumi logo

    Track your mastery

    Kumi's KMT system tracks your mastery across kanji, vocabulary, grammar, and reading. Create a free account to use it on 220,000+ concepts.

    Related concepts for this entry

    Used in vocabulary

    • 鬼
    • に
    • な
    • る

    Explore more

    Kanji Vocab dictionary›Browse all entries›