| 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-
- 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 6
JLPT level N1
1205 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 敵 【テキ】 opponent, rival, adversary, menace, danger, threat, enemy
- 敵意 【テキイ】 hostility, animosity, enmity
- 強敵 【キョウテキ】 formidable enemy, strong enemy, tough enemy
- 無敵 【ムテキ】 invincible, unrivaled, unrivalled, matchless, unbeatable, undefeatable
Kun reading compounds
- 敵 【かたき】 rival, opponent, adversary, competitor, enemy (esp. one with which there is longstanding enmity), foe, revenge, spouse
- 敵討ち 【かたきうち】 vengeance, revenge, retaliation
- 目の敵 【めのかたき】 enemy
- 仇を討つ 【かたきをうつ】 to avenge (someone) by striking down their killer
- 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
Spanish
- enemigo
- oponente
- adversario
- rival
Portuguese
- inimigo
- adversário
French
- ennemi
- adversaire
| 678 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 779 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 756 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1057 | A New Dictionary of Kanji Usage |
| 2060 | Classic Nelson (Andrew Nelson) |
| 454 | Essential Kanji (P.G. O’Neill) |
| 1391 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2354 | Japanese Names (P.G. O’Neill) |
| 416 | Kanji and Kana (Spahn and Hadamitzky) |
| 422 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 658 | Kanji in Context (Nishiguchi and Kono) |
| 946 | Kodansha Compact Kanji Guide |
| 2340 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1204 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1648 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 450 | Les Kanjis dans la tete (Yves Maniette) |
| 13354 | Morohashi |
| 1864 | New Japanese English Character Dictionary (Jack Halpern) |
| 2359 | New Nelson (John Haig) |
| 443 | Remembering The Kanji (James Heisig) |
| 475 | Remembering The Kanji, 6th edition (James Heisig) |
| 809 | Tuttle Kanji Cards (Alexander Kask) |
| 466 | 2001 Kanji |
| 4i11.2 | The Kanji Dictionary |
| 1-11-4 | SKIP code |
| 0824.0 | Four corner code |
| 1-37-08 | JIS X 0208-1997 kuten code |
| 6575 | Unicode hex code |