King's Kung-Fu& Tai Chi

Japanese symbol for “deep”

Romaji: fukai
deep (hole, forest, snow, etc.)

In Japanese, deep is , read (fukai).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

  1. adj-i deep (hole, forest, snow, etc.)
  2. adj-i dense (e.g. fog); thick (e.g. weeds, woods); heavy
  3. adj-i close (e.g. relationship); deep (involvement); intimate; thick
  4. adj-i intense (e.g. longing, flavor); severe; strong (feelings); serious (e.g. blow); deep-seated (e.g. hatred)
  5. adj-i profound (e.g. meaning); deep (e.g. thought); heavy (e.g. silence)
  6. adj-i sound (sleep); deep (slumber)

Kanji and stroke order

deep, heighten, intensify
on: シン
kun: ふか.い、-ぶか.い、ふか.まる、ふか.める
11 strokes · JLPT 2

Other Japanese words for “deep”

WordReadingMeaning
こい koideep (colour); dark
ひくい hikuideep (voice); in a low key; low (volume)
あつい atsuithick; deep; heavy
ふとい futoideep (of a voice); thick; sonorous
じゅうこう juukouprofound; deep; grave

Related words

Words that share a kanji.

WordReadingMeaning
しんこく shinkokuserious; severe; grave
しんや shin'yalate at night
ふかめる fukameruto deepen; to heighten; to intensify
きょうみぶかい kyoumibukaivery interesting; of great interest
ふかみ fukamideep place; depths

See also: Chinese symbol for “deep”.

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.