| 1456 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1577 | A New Dictionary of Kanji Usage |
| 312 | Classic Nelson (Andrew Nelson) |
| 1501 | Essential Kanji (P.G. O’Neill) |
| 1725 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1676 | Kanji and Kana (Spahn and Hadamitzky) |
| 1791 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1805 | Kanji in Context (Nishiguchi and Kono) |
| 1622 | Kodansha Compact Kanji Guide |
| 2604 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1333 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1806 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1908 | Les Kanjis dans la tete (Yves Maniette) |
| 34127 | Morohashi |
| 2100 | New Japanese English Character Dictionary (Jack Halpern) |
| 5432 | New Nelson (John Haig) |
| 1890 | Remembering The Kanji (James Heisig) |
| 2037 | Remembering The Kanji, 6th edition (James Heisig) |
| 1388 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1432 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 衰退 【スイタイ】 decline, degeneration, decay, waning, ebbing
- 衰弱 【スイジャク】 weakness, debility, breakdown, prostration
- 減衰 【ゲンスイ】 attenuation, damping, decay
- 盛衰 【セイスイ】 rise and fall, ups and downs, welfare, vicissitudes
Kun reading compounds
- 衰える 【おとろえる】 to become weak, to decline, to wear, to abate, to decay, to wither, to waste away
Readings
- Korean:
- soe, choe
Spanish
- declinar
- rehusar
- menguar
- debilitarse
Portuguese
- decadência
- decadente
- enfraquecer
French
- déclin
- diminuer
- s'affaiblir
| 465 | 2001 Kanji |
| 2j8.1 | The Kanji Dictionary |
| 2-2-8 | SKIP code |
| 0073.2 | Four corner code |
| 1-31-74 | JIS X 0208-1997 kuten code |
| 8870 | Unicode hex code |
Jōyō kanji, taught in grade 2
JLPT level N2
958 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 弱 【ジャク】 a little less than, a little under, slightly fewer than, weakness, the weak, low (setting), -lower (seismic intensity)
- 弱者 【ジャクシャ】 weak person, the weak, vulnerable person, disadvantaged person
- 精神薄弱 【セイシンハクジャク】 feeble-mindedness, intellectual disability
- 薄弱 【ハクジャク】 feebleness, weakness, weak
Kun reading compounds
- 弱い 【よわい】 weak, frail, delicate, tender, unskilled, weak (wine)
- 弱い経済 【よわいけいざい】 weak economy
- 弱る 【よわる】 to weaken, to grow weak, to wane, to decline (of one's health), to be downcast, to be dejected, to be dispirited, to be troubled, to be at a loss, to be perplexed, to be annoyed
- 弱まる 【よわまる】 to abate, to weaken, to be emaciated, to be dejected, to be perplexed
- 弱める 【よわめる】 to weaken
Readings
- Korean:
- yag
Spanish
- débil
- endeble
- delicado
- debilitarse
- debilitar
Portuguese
- frágil
- fraco
French
- faible
- fragile
| 236 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 154 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 138 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 819 | A New Dictionary of Kanji Usage |
| 650 | Classic Nelson (Andrew Nelson) |
| 595 | Essential Kanji (P.G. O’Neill) |
| 169 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1647 | Japanese Names (P.G. O’Neill) |
| 218 | Kanji and Kana (Spahn and Hadamitzky) |
| 218 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 112 | Kanji in Context (Nishiguchi and Kono) |
| 610 | Kodansha Compact Kanji Guide |
| 1499 | Kodansha Kanji Dictionary (Jack Halpern) |
| 792 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1080 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1244 | Les Kanjis dans la tete (Yves Maniette) |
| 9791P | Morohashi |
| 1167 | New Japanese English Character Dictionary (Jack Halpern) |
| 1692 | New Nelson (John Haig) |
| 1236 | Remembering The Kanji (James Heisig) |
| 1323 | Remembering The Kanji, 6th edition (James Heisig) |
| 196 | Tuttle Kanji Cards (Alexander Kask) |
| 3553 | 2001 Kanji |
| 3h7.2 | The Kanji Dictionary |
| 1-5-5 | SKIP code |
| 1712.7 | Four corner code |
| 1-28-69 | JIS X 0208-1997 kuten code |
| 5f31 | Unicode hex code |