| 1575 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1976 | A New Dictionary of Kanji Usage |
| 3061 | Classic Nelson (Andrew Nelson) |
| 1663 | Essential Kanji (P.G. O’Neill) |
| 1548 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1813 | Kanji and Kana (Spahn and Hadamitzky) |
| 1957 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1738 | Kanji in Context (Nishiguchi and Kono) |
| 1356 | Kodansha Compact Kanji Guide |
| 4072 | Kodansha Kanji Dictionary (Jack Halpern) |
| 2066 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2800 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1699 | Les Kanjis dans la tete (Yves Maniette) |
| 22257 | Morohashi |
| 3286 | New Japanese English Character Dictionary (Jack Halpern) |
| 3823 | New Nelson (John Haig) |
| 1683 | Remembering The Kanji (James Heisig) |
| 1814 | Remembering The Kanji, 6th edition (James Heisig) |
| 1649 | Tuttle Kanji Cards (Alexander Kask) |
Jōyō kanji, taught in junior high
JLPT level N1
1663 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 痴 【チ】 foolishness, fool, moha (ignorance, folly)
- 痴呆 【チホウ】 dementia, stupidity, foolishness, fool, idiot
- 愚痴 【グチ】 idle complaint, grumble, moha (ignorance, folly)
- 白痴 【ハクチ】 idiot, retard, idiocy, profound mental retardation
Readings
- Korean:
- chi
Spanish
- estúpido
- tonto
Portuguese
- tolo
- estúpido
French
- idiot
- stupide
| 577 | 2001 Kanji |
| 5i8.1 | The Kanji Dictionary |
| 3-5-8 | SKIP code |
| 0016.0 | Four corner code |
| 1-35-52 | JIS X 0208-1997 kuten code |
| 75f4 | Unicode hex code |
Jōyō kanji, taught in junior high
JLPT level N2
1574 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 鈍 【ドン】 dull, slow, stupid, dull-brained
- 鈍化 【ドンカ】 becoming dull, slowing down
- 焼鈍 【ショウドン】 annealing
- 愚鈍 【グドン】 stupid, dim-witted, dense, dull, obtuse, slow
Kun reading compounds
- 鈍い 【にぶい】 dull (e.g. a knife), blunt, thickheaded, obtuse, stupid, dull (sound, color, etc.), dim (light), slow, sluggish, inert, lethargic, insensitive, dull (e.g. reflexes), unperceptive, unfeeling
- 鈍い音 【にぶいおと】 dull sound, muffled sound
- 鈍る 【にぶる】 to become blunt, to grow dull, to become less capable, to weaken, to falter
- 鈍る 【にぶる】 to become blunt, to grow dull, to become less capable, to weaken, to falter
- 鈍ら 【なまくら】 blunt (e.g. sword), dull, lazy, cowardly, good for nothing
Readings
- Korean:
- dun
Spanish
- torpe
- pesado
- embotado
- obtuso
- embotarse
- atascarse
Portuguese
- tolo
- lento
- estúpido
- embotado
- sem corte
French
- émoussé
- lent
- bête
| 1671 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1731 | A New Dictionary of Kanji Usage |
| 4830 | Classic Nelson (Andrew Nelson) |
| 1388 | Essential Kanji (P.G. O’Neill) |
| 975 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 1943 | Japanese Names (P.G. O’Neill) |
| 966 | Kanji and Kana (Spahn and Hadamitzky) |
| 997 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1372 | Kanji in Context (Nishiguchi and Kono) |
| 1811 | Kodansha Compact Kanji Guide |
| 2123 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1108 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 1507 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1509 | Les Kanjis dans la tete (Yves Maniette) |
| 40219 | Morohashi |
| 1689 | New Japanese English Character Dictionary (Jack Halpern) |
| 6235 | New Nelson (John Haig) |
| 1495 | Remembering The Kanji (James Heisig) |
| 1611 | Remembering The Kanji, 6th edition (James Heisig) |
| 1597 | Tuttle Kanji Cards (Alexander Kask) |
| 2856 | 2001 Kanji |
| 8a4.2 | The Kanji Dictionary |
| 1-8-4 | SKIP code |
| 8511.7 | Four corner code |
| 1-38-63 | JIS X 0208-1997 kuten code |
| 920d | Unicode hex code |