- 1. [adj-na] honest and homely; simple (arch)
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) | とんぼくな | (tonbokuna) |
| Non-past, plain | とんぼくだ | (tonbokuda) |
| Non-past, polite | とんぼくです | (tonbokudesu) |
| Past, plain | とんぼくだった | (tonbokudatta) |
| Past, polite | とんぼくでした | (tonbokudeshita) |
| Negative, plain | とんぼくじゃない | (tonbokujanai) |
| Negative, polite | とんぼくじゃないです | (tonbokujanaidesu) |
| Past negative, plain | とんぼくじゃなかった | (tonbokujanakatta) |
| Past negative, polite | とんぼくじゃなかったです | (tonbokujanakattadesu) |
| Te-form | とんぼくで | (tonbokude) |
| Conditional (―nara) | とんぼくなら | (tonbokunara) |