| Readings | On-reading | けん |
| Kun-reading | かたい | |
| Meaning | hard / solid / strict | |
| Radical | 土 | |
| Stroke count | １２ | |
| JLPT Level | N1 | |
Stroke order of 「堅」
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Vocabulary contains 「堅」
| Word | Meaning |
| 堅い（かたい） | hard |
