黒い|くろいkuroi[2]nakadaka (mid-high)

1. i-adjectiveblack
   丈たけの長ながい黒くろいコートを着きた、あの長身ちょうしんの男おとこだった。↗

   It was the tall man in the long, black coat.
2. i-adjectivedark; blackish; sun-tanned (skin)
   ナンシーはヘレンよりもほんのすこし色いろが黒くろい。↗

   Nancy is a shade darker than Helen.
3. i-adjectivesuspicious; criminal; illicit
   州知事しゅうちじは黒くろい金かねに手てをつけました。↗

   The governor took the money out of a slush fund.
4. i-adjectivedarkened and dirty; sooty; covered in dirt
5. i-adjectiveevil; wicked; black-hearted
6. i-adjectiveinauspicious; ill-boding; unlucky

• Related黒っぽいくろっぽいCasualColloquial. Means blackish or tending toward black, as in 「黒っぽい服」; a weaker degree of black than 「黒い」.
• RelatedダークNeutralNeutral. A loanword for dark shades or the dark side of something, as in 「ダークグレー」.
• Related浅黒いあさぐろいNeutralNeutral. Describes slightly dark skin, as in 「浅黒い肌」; 「黒い」 is the general term for black, deeper in degree and wider in range.
• Related真っ黒まっくろCasualColloquial. Works as a noun and adjectival noun; means completely black, and also skin tanned very dark.
• Related薄黒いうすぐろいNeutralNeutral. Somewhat black and dim rather than fully black, as in 「薄黒い雲」; lighter in degree than 「黒い」.
• Relatedどす黒いどすぐろいWrittenWritten/formal prose. A murky, dull black, as in 「どす黒い血」; also used figuratively for something sinister.
• Related真っ黒いまっくろいCasualColloquial. An adjective for pitch black; emphasizes the degree of blackness more than 「黒い」.
• Relatedか黒いかぐろいWrittenWritten/formal prose. A literary, old-fashioned word for very deep black, found mostly in literature; everyday speech uses 「黒い」 or 「真っ黒い」.
• Antonym白いしろいNeutralNeutral. The opposite of 「黒い」: white, and by extension innocent or blameless.

Use 「黒い」 as the default for black. For something blackish rather than fully black, pick 「黒っぽい」; for completely black or deeply tanned, 「真っ黒」; for slightly dark skin, 「浅黒い」; for a murky, sinister black, 「どす黒い」. 「白い」 is the antonym for white. 「ダーク」, 「薄黒い」, 「真っ黒い」 and 「か黒い」 are narrower or more marked options.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 黒色くろいろの、全すべての波長はちょうの光ひかりを吸収きゅうしゅうし、特定とくていの色いろを反射はんしゃしない状態じょうたい。
2. （人ひとと比くらべ相対的そうたいてきに）肌はだなどの色いろが濃こい。
3. 汚よごれなどで濃こい色いろのついたさま。
4. 汚きたない、悪徳あくとくの。
5. 疑惑ぎわくがある。