- 1. [adj-na] {psych} instrumental (activities, behavior, etc.)
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) | しゅだんてきな | (shudantekina) |
| Non-past, plain | しゅだんてきだ | (shudantekida) |
| Non-past, polite | しゅだんてきです | (shudantekidesu) |
| Past, plain | しゅだんてきだった | (shudantekidatta) |
| Past, polite | しゅだんてきでした | (shudantekideshita) |
| Negative, plain | しゅだんてきじゃない | (shudantekijanai) |
| Negative, polite | しゅだんてきじゃないです | (shudantekijanaidesu) |
| Past negative, plain | しゅだんてきじゃなかった | (shudantekijanakatta) |
| Past negative, polite | しゅだんてきじゃなかったです | (shudantekijanakattadesu) |
| Te-form | しゅだんてきで | (shudantekide) |
| Conditional (―nara) | しゅだんてきなら | (shudantekinara) |