in a good mood, cheerful, in high spirits
トムは上機嫌だ。
Tom is in a good mood.
ロビンソンさんの病気は深刻なものだが、彼は上機嫌だ。
Mr. Robinson's illness is serious, but he is in good spirits.
トムは今日は上機嫌だなぁ。
Tom is in a really good mood today.
「行くよ〜、何か持って行くものある？」「上機嫌なノリ、だけかな」「じゃあいいや」
“I’m heading over! Is there anything I should bring?” “Just your cheerful self, I guess.” “Then never mind.”
今朝は、上機嫌ね。
You're in a good mood this morning.
その子は上機嫌で飛行機に乗り込んだ。
The child boarded the plane in high spirits.
彼は今日は上機嫌だ。
He’s in a good mood today.