- 1. [n, adj-na, adj-no] elite; best; pick; cream of the crop
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) | せいえいな | (seieina) |
| Non-past, plain | せいえいだ | (seieida) |
| Non-past, polite | せいえいです | (seieidesu) |
| Past, plain | せいえいだった | (seieidatta) |
| Past, polite | せいえいでした | (seieideshita) |
| Negative, plain | せいえいじゃない | (seieijanai) |
| Negative, polite | せいえいじゃないです | (seieijanaidesu) |
| Past negative, plain | せいえいじゃなかった | (seieijanakatta) |
| Past negative, polite | せいえいじゃなかったです | (seieijanakattadesu) |
| Te-form | せいえいで | (seieide) |
| Conditional (―nara) | せいえいなら | (seieinara) |