旺おう盛せい

na-adjective, noun

vigorous; energetic; lively; healthy

Describes strong, flourishing states of abstract qualities like energy, appetite, curiosity, or imagination. Often used in formal or written contexts.

• 彼かれは旺おう盛せいな好こう奇き心しんで新あたらしい分ぶん野やに挑ちょう戦せんした。

  With vigorous curiosity, he took on a new field.

• 高こう齢れいになっても食しょく欲よくが旺おう盛せいだ。

  Even in old age, his appetite is healthy and strong.

noun, used as a suffix, na-adjective

full of; brimming with

Suffix-like use attaching to nouns that express a drive or quality (e.g., 好奇心旺盛, 食欲旺盛). Functions as an adjectival noun describing a state of abundance.

• 彼かの女じょは好こう奇き心しん旺おう盛せいで、何なんにでも興きょう味みを持もつ。

  She is full of curiosity and takes an interest in everything.

• うちの子こは食しょく欲よく旺おう盛せいで、よく食たべる。

  Our child has a hearty appetite and eats a lot.