| 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 grade 5
JLPT level N3
670 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 適格 【テキカク】 eligible, qualified, competent
- 適応 【テキオウ】 adaptation, accommodation, conformity
- 不適 【フテキ】 inadequacy, inappropriateness, unfitness, impropriety
- 悠々自適 【ユウユウジテキ】 living a life of leisure with dignity, living quietly and comfortably free from worldly cares, otium cum dignitate
Kun reading compounds
- 叶う 【かなう】 to come true (of a wish, prayer, etc.), to be realized, to be fulfilled, to suit (e.g. a purpose), to meet (wishes, ideals, etc.), to conform to (standards, rules, etc.), to be consistent with, to match (implies competition), to rival, to bear (e.g. the heat)
Readings
- Korean:
- jeog, cheog
Spanish
- adecuado
- apropiado
- adaptarse
Portuguese
- raro
- ocasional
- conveniente
- qualificado
- capaz
French
- approprié
- occasionnel
- rare
- qualifié
- capable
| 679 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 778 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 755 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 663 | A New Dictionary of Kanji Usage |
| 4738 | Classic Nelson (Andrew Nelson) |
| 453 | Essential Kanji (P.G. O’Neill) |
| 966 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2240 | Japanese Names (P.G. O’Neill) |
| 415 | Kanji and Kana (Spahn and Hadamitzky) |
| 421 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 657 | Kanji in Context (Nishiguchi and Kono) |
| 718 | Kodansha Compact Kanji Guide |
| 3918 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2020 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2726 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 448 | Les Kanjis dans la tete (Yves Maniette) |
| 39076P | Morohashi |
| 3160 | New Japanese English Character Dictionary (Jack Halpern) |
| 6107 | New Nelson (John Haig) |
| 441 | Remembering The Kanji (James Heisig) |
| 473 | Remembering The Kanji, 6th edition (James Heisig) |
| 799 | Tuttle Kanji Cards (Alexander Kask) |
| 449 | 2001 Kanji |
| 2q11.3 | The Kanji Dictionary |
| 3-3-11 | SKIP code |
| 3-2-11 | SKIP code |
| 3030.2 | Four corner code |
| 1-37-12 | JIS X 0208-1997 kuten code |
| 9069 | Unicode hex code |