- 1. [adj-na] obstinate; stubborn; headstrong; self-centred; self-centered
Conjugation — Adjective (―na)
This word itself does not change -- these are forms of the copula だ ("to be") attached to it.
| Attributive (before a noun) | けんかいな | (kenkaina) |
| Non-past, plain | けんかいだ | (kenkaida) |
| Non-past, polite | けんかいです | (kenkaidesu) |
| Past, plain | けんかいだった | (kenkaidatta) |
| Past, polite | けんかいでした | (kenkaideshita) |
| Negative, plain | けんかいじゃない | (kenkaijanai) |
| Negative, polite | けんかいじゃないです | (kenkaijanaidesu) |
| Past negative, plain | けんかいじゃなかった | (kenkaijanakatta) |
| Past negative, polite | けんかいじゃなかったです | (kenkaijanakattadesu) |
| Te-form | けんかいで | (kenkaide) |
| Conditional (―nara) | けんかいなら | (kenkainara) |