陽気|ようきyouki[0]heiban (flat)

1. na-adjective, nouncheerful; jovial; merry; lively
   ナンシーはとても陽気ようきでかわいらしい性格せいかくだ。↗

   Nancy has a very lively and sweet temperament.
2. nounweather; season
   今日きょうは汗あせばむような陽気ようきだ。↗

   It's warm enough today to bring out a slight sweat.
3. nounspirit of yang

• Synonym快活かいかつWrittenWritten/formal prose. An open, cheerful nature and lively spirit; close to 「陽気」 but more literary.
• Synonym朗らかほがらかNeutralA gentle, unclouded cheerfulness, as in 「朗らかな人」; softer and milder than 「陽気」.
• Synonym楽しげたのしげNeutralDescribes someone who merely looks happy, as in 「楽しげに話す」; a momentary outward appearance, not a personality.
• Synonym明朗めいろうWrittenOpen and cheerful, or clear and fair as in 「明朗会計」; leans toward written/formal prose.
• Related楽観的らっかんてきNeutralOptimistic — about how one views things; 「陽気」 instead stresses a lively, sociable, laughing personality.
• Related上機嫌じょうきげんNeutralIn an excellent mood, as in 「上機嫌で帰宅する」; a passing mood, whereas 「陽気」 covers both character and momentary states.
• Related活発かっぱつNeutralLively and active, as in 「活発な子」; stresses being on the move rather than being cheerful.
• Related元気げんきNeutralEnergetic and in good health, as in 「元気な子」; doesn't necessarily mean an outgoing, fun-loving personality.
• Related軽快けいかいNeutralLight and nimble, as in 「軽快なリズム」; mostly about movement and rhythm, and also used for recovering from illness.
• Related晴れ晴れしいはればれしいWrittenWritten/formal prose. Clear skies or a carefree, refreshed mood; rare in use — 「晴れやか」 is the usual choice.
• Related晴れやかはれやかNeutralA bright, radiant mood or face, as in 「晴れやかな顔」; mostly a momentary expression rather than a personality.
• Relatedご機嫌ごきげんNeutralIn a good mood, or a polite greeting about well-being, as in 「ご機嫌だね」「ご機嫌を伺う」; a passing mood.
• Related活動的かつどうてきNeutralActive and keen to join in activities; stresses doing things, not necessarily a cheerful, smiling nature.
• Related精力的せいりょくてきNeutralFull of drive and stamina, as in 「精力的に働く」; about vigor, not a bright, cheerful personality.
• Antonym陰気いんきNeutralGloomy and withdrawn, as in 「陰気な顔」; the direct opposite of 「陽気」 on the bright-to-dark scale of personality.

Use 「陽気」 for a cheerful, sociable personality or for weather and season. For a gentle, sunny nature say 「朗らか」; for a momentary good mood 「上機嫌」 or 「晴れやか」; for being active 「活発」; the opposite is 「陰気」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 時候じこう。
2. 万物ばんぶつが生うまれて活動かつどうしようとする気き。
3. 性格せいかくが明あかるく賑にぎやかなこと。
4. 明あかるく賑にぎやかなさま。