| 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 3
JLPT level N3
117 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 期 【キ】 period, time, opportunity, chance, occasion, age, term (e.g. in office), session (e.g. of parliament), stage (e.g. of a disease), season (e.g. of a TV series)
- 期間 【キカン】 period, term, interval
- 周期 【シュウキ】 cycle, period
- 当期 【トウキ】 current term (period)
- 期 【ゴ】 time, moment, limit, time of death, last moment, midnight in red-light districts during the Edo period
- 期日 【キジツ】 fixed date, appointed date, set date, deadline, due date
- 一期 【イチゴ】 one's whole life, one's lifetime
- 非業の最期 【ヒゴウノサイゴ】 unnatural death, violent death
Readings
- Korean:
- gi
Spanish
- período
- plazo
- intención
- propósito
Portuguese
- período
- tempo
- data
- termo
French
- période
- temps
- date
- terme
| 183 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 269 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 251 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 119 | A New Dictionary of Kanji Usage |
| 3785 | Classic Nelson (Andrew Nelson) |
| 619 | Essential Kanji (P.G. O’Neill) |
| 614 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1671 | Japanese Names (P.G. O’Neill) |
| 449 | Kanji and Kana (Spahn and Hadamitzky) |
| 456 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 690 | Kanji in Context (Nishiguchi and Kono) |
| 1008 | Kodansha Compact Kanji Guide |
| 2139 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1120 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1520 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1781 | Les Kanjis dans la tete (Yves Maniette) |
| 14378 | Morohashi |
| 1704 | New Japanese English Character Dictionary (Jack Halpern) |
| 4836 | New Nelson (John Haig) |
| 1765 | Remembering The Kanji (James Heisig) |
| 1902 | Remembering The Kanji, 6th edition (James Heisig) |
| 247 | The Kanji Way to Japanese Language Power (Dale Crowley) |
| 394 | Tuttle Kanji Cards (Alexander Kask) |
| 1946 | 2001 Kanji |
| 4b8.11 | The Kanji Dictionary |
| 1-8-4 | SKIP code |
| 4782.0 | Four corner code |
| 1-20-92 | JIS X 0208-1997 kuten code |
| 671f | Unicode hex code |