明朗 (meirou) conjugation
bright, clear, cheerful
明朗 (めいろう, meirou) is a na-adjective. Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 明朗だ meirouda | 明朗です meiroudesu | The form you look up. Also the casual “is ~”. |
| Negative | 明朗じゃない meiroujanai | 明朗じゃないです meiroujanaidesu | “is not ~”. |
| Past | 明朗だった meiroudatta | 明朗でした meiroudeshita | “was ~”. |
| Past negative | 明朗じゃなかった meiroujanakatta | 明朗じゃなかったです meiroujanakattadesu | “was not ~”. |
| Te-form | 明朗で meiroude | — | Links to the next clause: “~ and …”. |
| Adverb | 明朗に meirouni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 明朗な〜 meirouna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 明朗なら meirounara | — | “if it is ~”. |
| Conditional (~たら) | 明朗だったら meiroudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 明朗になる meirouninaru | 明朗になります meirouninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 明朗すぎる meirousugiru | 明朗すぎます meirousugimasu | “too ~”. |
| Looks ~ (~そう) | 明朗そう meirousou | 明朗そうです meirousoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
See the full rules in the adjective conjugation guide.