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. 黒ずむ

    黒ずむ

    黒くろず​む​

    to blacken

    KMT10News #35+1Verb, IntransitiveNature & EnvironmentKanji Vocab18 strokes

    くろずむ

    Verb, Intransitive

    1.
    to blacken, to darken

    Stroke 0 / 18

    Speed1.0x

    古ふるい銀ぎん製せい品ひんが黒くろずんでいます。

    The old silverware is tarnished (blackened).

    KMT7Daily Life
    長なが年ねん使つかわれた木もく材ざいは、湿しっ気けで黒くろずんでしまうことがあります。

    Wood that has been used for many years can sometimes blacken due to humidity.

    KMT10Home & HousingNature & Environment
    大たい気き汚お染せんの影えい響きょうで、都と市しの建たて物ものが徐じょ々じょに黒くろずんでいく。

    Due to the effects of air pollution, city buildings gradually blacken.

    KMT10Nature & EnvironmentHome & Housing
    腐ふ敗はいが進すすむと、果くだ物もの表のひょう面めんが黒くろずんで食たべられなくなる。

    As decay progresses, the surface of the fruit blackens and becomes inedible.

    KMT10Nature & EnvironmentFood & Dining
    嵐あらしの前まえの空そらは、不ぶ気き味みなほどに黒くろずんで見みえた。

    The sky before the storm looked ominously dark.

    KMT10Weather & GeographyNature & Environment

    Characters that make up this word

    黒
    くろ・くろ.ずむ・くろ.い…(1)
    black
    Kanji
    ず
    zu
    Kana
    む
    mu
    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

    • 黒
    • ず
    • む

    Explore more

    Kanji Vocab dictionary›Browse all entries›