- 1. [adj-na, n] kind and careful (instruction, explanation, etc.); considerate; helpful; thoughtful; detailed; scrupulous
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) | こんせつな | (konsetsuna) |
| Non-past, plain | こんせつだ | (konsetsuda) |
| Non-past, polite | こんせつです | (konsetsudesu) |
| Past, plain | こんせつだった | (konsetsudatta) |
| Past, polite | こんせつでした | (konsetsudeshita) |
| Negative, plain | こんせつじゃない | (konsetsujanai) |
| Negative, polite | こんせつじゃないです | (konsetsujanaidesu) |
| Past negative, plain | こんせつじゃなかった | (konsetsujanakatta) |
| Past negative, polite | こんせつじゃなかったです | (konsetsujanakattadesu) |
| Te-form | こんせつで | (konsetsude) |
| Conditional (―nara) | こんせつなら | (konsetsunara) |