| 500 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 600 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 572 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 134 | A New Dictionary of Kanji Usage |
| 17 | Classic Nelson (Andrew Nelson) |
| 130 | Essential Kanji (P.G. O’Neill) |
| 104 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 94 | Japanese Names (P.G. O’Neill) |
| 3.18 | Japanese for Busy People |
| 94 | Kanji and Kana (Spahn and Hadamitzky) |
| 94 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 422 | Kanji in Context (Nishiguchi and Kono) |
| 10 | Kodansha Compact Kanji Guide |
| 4242 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2141 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2890 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1225 | Les Kanjis dans la tete (Yves Maniette) |
| 19 | Morohashi |
| 3434 | New Japanese English Character Dictionary (Jack Halpern) |
| 13 | New Nelson (John Haig) |
| 1217 | Remembering The Kanji (James Heisig) |
| 1302 | Remembering The Kanji, 6th edition (James Heisig) |
| 103 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 444 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in grade 4
JLPT level N4
101 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 不 【フ】 un-, non-, negative prefix
- 不安 【フアン】 anxiety, uneasiness, worry, apprehension, fear, insecurity, suspense
- 意味不 【イミフ】 of uncertain meaning, ambiguous, cryptic, nonsensical, incomprehensible, perplexing
- 社不 【シャフ】 person unfit for society, misfit
- 無 【ブ】 un-, non-, bad ..., poor ...
- 不気味 【ブキミ】 weird, eerie, ominous, creepy, uncanny, unearthly
Readings
- Korean:
- bu, bul
Spanish
- prefijo negativo: in-
- des-
Portuguese
- Prefixo negativo
- negativa
- não
- feia
- ruim
- deselegante
French
- négation
- non
- mauvais
- laid
- maladroit
| 3154 | 2001 Kanji |
| 0a4.2 | The Kanji Dictionary |
| 4-4-1 | SKIP code |
| 3-3-1 | SKIP code |
| 3-2-2 | SKIP code |
| 1090.0 | Four corner code |
| 1-41-52 | JIS X 0208-1997 kuten code |
| 4e0d | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N1
910 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 還元 【カンゲン】 restoration, return, reduction, resolution, deoxidization, deoxidation
- 環境 【カンキョウ】 environment, surroundings, circumstances
- 奪還 【ダッカン】 recapture, retaking, recovery, taking back
- 送還 【ソウカン】 sending home, repatriation, deportation
Kun reading compounds
- 帰る 【かえる】 to return, to come home, to go home, to go back, to leave (of a guest, customer, etc.), to get home, to get to home plate
Readings
- Korean:
- hwan, seon
Spanish
- volver
- regresar
- devolver
Portuguese
- devolver
- voltar
French
- renvoyer
- retour
| 1114 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1139 | A New Dictionary of Kanji Usage |
| 4750 | Classic Nelson (Andrew Nelson) |
| 1557 | Essential Kanji (P.G. O’Neill) |
| 1823 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2588 | Japanese Names (P.G. O’Neill) |
| 866 | Kanji and Kana (Spahn and Hadamitzky) |
| 885 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1215 | Kanji in Context (Nishiguchi and Kono) |
| 723 | Kodansha Compact Kanji Guide |
| 3945 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2032 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2743 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 845 | Les Kanjis dans la tete (Yves Maniette) |
| 39174P | Morohashi |
| 3180 | New Japanese English Character Dictionary (Jack Halpern) |
| 6121 | New Nelson (John Haig) |
| 837 | Remembering The Kanji (James Heisig) |
| 900 | Remembering The Kanji, 6th edition (James Heisig) |
| 1856 | Tuttle Kanji Cards (Alexander Kask) |
| 3665 | 2001 Kanji |
| 2q13.4 | The Kanji Dictionary |
| 3-3-13 | SKIP code |
| 3630.3 | Four corner code |
| 1-20-52 | JIS X 0208-1997 kuten code |
| 9084 | Unicode hex code |