- 1. [adv, adj-no, adj-na, n] to the limit; to the full; as much as possible; with all one's might
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) | めいっぱいな | (meippaina) |
| Non-past, plain | めいっぱいだ | (meippaida) |
| Non-past, polite | めいっぱいです | (meippaidesu) |
| Past, plain | めいっぱいだった | (meippaidatta) |
| Past, polite | めいっぱいでした | (meippaideshita) |
| Negative, plain | めいっぱいじゃない | (meippaijanai) |
| Negative, polite | めいっぱいじゃないです | (meippaijanaidesu) |
| Past negative, plain | めいっぱいじゃなかった | (meippaijanakatta) |
| Past negative, polite | めいっぱいじゃなかったです | (meippaijanakattadesu) |
| Te-form | めいっぱいで | (meippaide) |
| Conditional (―nara) | めいっぱいなら | (meippainara) |