- 1. [n, adj-no, adj-na] same quality; same nature; homogeneous
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) | どうしつな | (doushitsuna) |
| Non-past, plain | どうしつだ | (doushitsuda) |
| Non-past, polite | どうしつです | (doushitsudesu) |
| Past, plain | どうしつだった | (doushitsudatta) |
| Past, polite | どうしつでした | (doushitsudeshita) |
| Negative, plain | どうしつじゃない | (doushitsujanai) |
| Negative, polite | どうしつじゃないです | (doushitsujanaidesu) |
| Past negative, plain | どうしつじゃなかった | (doushitsujanakatta) |
| Past negative, polite | どうしつじゃなかったです | (doushitsujanakattadesu) |
| Te-form | どうしつで | (doushitsude) |
| Conditional (―nara) | どうしつなら | (doushitsunara) |