- 1. [adj-na, n] strong-backed
- 2. [adj-na, n] stubborn; persevering; tenacious
- 3. [adj-na, n] viscous; elastic and sticky; chewy
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) | こしづよな | (koshizuyona) |
| Non-past, plain | こしづよだ | (koshizuyoda) |
| Non-past, polite | こしづよです | (koshizuyodesu) |
| Past, plain | こしづよだった | (koshizuyodatta) |
| Past, polite | こしづよでした | (koshizuyodeshita) |
| Negative, plain | こしづよじゃない | (koshizuyojanai) |
| Negative, polite | こしづよじゃないです | (koshizuyojanaidesu) |
| Past negative, plain | こしづよじゃなかった | (koshizuyojanakatta) |
| Past negative, polite | こしづよじゃなかったです | (koshizuyojanakattadesu) |
| Te-form | こしづよで | (koshizuyode) |
| Conditional (―nara) | こしづよなら | (koshizuyonara) |