旺盛(おうせい) おうせい na-adjective, noun vigorous, flourishing descriptive 1. vigorous, lively, thriving Describes something that is full of energy, vitality, or activity. Often used for appetites, curiosity, ambition, or business activity. 食欲(しょくよく)が旺盛(おうせい)だ。🔊 I have a healthy appetite. 子供(こども)は好奇心(こうきしん)が旺盛(おうせい)だ。🔊 Children have a strong sense of curiosity. 旺盛(おうせい)な探究心(たんきゅうしん)で研究(けんきゅう)を続(つづ)けている。🔊 They continue their research with a vigorous spirit of inquiry. 旺盛(おうせい) describes strong vitality, energy, or activity.Common collocations食欲(しょくよく)旺盛(おうせい) (hearty appetite)好奇心(こうきしん)旺盛(おうせい) (full of curiosity)意欲(いよく)旺盛(おうせい) (highly motivated)旺盛(おうせい)な活動(かつどう) (vigorous activity)創作(そうさく)意欲(いよく)が旺盛(おうせい)だ (full of creative energy)Conjugation旺盛(おうせい)な + noun (attributive)旺盛(おうせい)だ (predicative)旺盛(おうせい)に (adverbial) Related Words Compare: 低迷(ていめい) (stagnation, slump) Related: 繁盛(はんじょう) (prosperity, flourishing) general Added 2026.2.1 16:46 · Revised 2026.9.2 13:01 09000/09331_ousei