| 1865 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1876 | A New Dictionary of Kanji Usage |
| 112 | Classic Nelson (Andrew Nelson) |
| 1735 | Essential Kanji (P.G. O’Neill) |
| 1256 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2251 | Japanese Names (P.G. O’Neill) |
| 1228 | Kanji and Kana (Spahn and Hadamitzky) |
| 1292 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1820 | Kanji in Context (Nishiguchi and Kono) |
| 579 | Kodansha Compact Kanji Guide |
| 3731 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1909 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2592 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1392 | Les Kanjis dans la tete (Yves Maniette) |
| 9205 | Morohashi |
| 3008 | New Japanese English Character Dictionary (Jack Halpern) |
| 1600 | New Nelson (John Haig) |
| 1380 | Remembering The Kanji (James Heisig) |
| 1480 | Remembering The Kanji, 6th edition (James Heisig) |
| 1251 | Tuttle Kanji Cards (Alexander Kask) |
seclude, confine to a room, deep, profound, secluded, faint, dark, tranquil, calm
Jōyō kanji, taught in junior high
JLPT level N1
1996 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 幽霊 【ユウレイ】 ghost, specter, spectre, apparition, phantom
- 憂鬱 【ユウウツ】 depression, melancholy, dejection, gloom, despondency
- 幽々 【ユウユウ】 deep, dark
- 帰幽 【キユウ】 death
Kun reading compounds
- 微か 【かすか】 faint, dim, weak, slight, vague, indistinct, hazy, poor, wretched, meagre, meager, scanty
Readings
- Korean:
- yu
Spanish
- profundo
- recluir
- confinar
- el más allá
Portuguese
- isolar
- confina para um quarto
French
- isoler
- confiné
- profond
- obscur
- isolé
- faible
- sombre
- tranquille
- calme
| 1276 | 2001 Kanji |
| 3o6.6 | The Kanji Dictionary |
| 3-2-7 | SKIP code |
| 2277.0 | Four corner code |
| 1-45-09 | JIS X 0208-1997 kuten code |
| 5e7d | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
1634 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 怪 【カイ】 mystery, wonder
- 怪獣 【カイジュウ】 monster
- 奇々怪々 【キキカイカイ】 very strange, bizarre, weird, mysterious
- 夜道怪 【ヤドウカイ】 folk monster who wanders at night injuring and kidnapping people
- 怪我 【ケガ】 injury, wound, mistake, accident, loss
- けが人 【ケガニン】 wounded person, injured person
- 物怪 【モッケ】 unexpected
- 物の怪 【モノノケ】 (vengeful) ghost, specter, spectre
Kun reading compounds
- 怪しい 【あやしい】 suspicious, dubious, questionable, dodgy, shady, fishy, doubtful, unsure, uncertain, unlikely, implausible, untrustworthy, unreliable, clumsy, awkward, shaky, poor, strange, weird, eerie, spooky, uncanny, ominous (e.g. weather), threatening, dangerous (e.g. financial situation), uncertain, suspicious (of a potential amorous relation), mysterious, bewitching, alluring, enticing, enchanting
- 怪しい手つきで 【あやしいてつきで】 clumsily, with clumsy hands
- 怪しむ 【あやしむ】 to suspect
Readings
- Korean:
- goe
Spanish
- desconfiado
- receloso
- misterio
- fantasma
- sospechoso
- desconfiar
- recelar
- dudar
- sospechar
Portuguese
- Suspeito
- mistério
- aparição
French
- méfiant
- mystère
- apparition
| 1061 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1367 | A New Dictionary of Kanji Usage |
| 1665 | Classic Nelson (Andrew Nelson) |
| 1176 | Essential Kanji (P.G. O’Neill) |
| 1291 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1476 | Kanji and Kana (Spahn and Hadamitzky) |
| 1573 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1450 | Kanji in Context (Nishiguchi and Kono) |
| 809 | Kodansha Compact Kanji Guide |
| 354 | Kodansha Kanji Dictionary (Jack Halpern) |
| 220 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 264 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 723 | Les Kanjis dans la tete (Yves Maniette) |
| 10483 | Morohashi |
| 297 | New Japanese English Character Dictionary (Jack Halpern) |
| 1821 | New Nelson (John Haig) |
| 716 | Remembering The Kanji (James Heisig) |
| 773 | Remembering The Kanji, 6th edition (James Heisig) |
| 1172 | Tuttle Kanji Cards (Alexander Kask) |
| 1172 | 2001 Kanji |
| 4k5.11 | The Kanji Dictionary |
| 1-3-5 | SKIP code |
| 9701.4 | Four corner code |
| 1-18-88 | JIS X 0208-1997 kuten code |
| 602a | Unicode hex code |