- 1. [adj-na] experimental; provisional
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) | しけんてきな | (shikentekina) |
| Non-past, plain | しけんてきだ | (shikentekida) |
| Non-past, polite | しけんてきです | (shikentekidesu) |
| Past, plain | しけんてきだった | (shikentekidatta) |
| Past, polite | しけんてきでした | (shikentekideshita) |
| Negative, plain | しけんてきじゃない | (shikentekijanai) |
| Negative, polite | しけんてきじゃないです | (shikentekijanaidesu) |
| Past negative, plain | しけんてきじゃなかった | (shikentekijanakatta) |
| Past negative, polite | しけんてきじゃなかったです | (shikentekijanakattadesu) |
| Te-form | しけんてきで | (shikentekide) |
| Conditional (―nara) | しけんてきなら | (shikentekinara) |