This is the 5485th most frequent Japanese word.
うらやましく
Enviously; feeling jealousy or longing for something.
Here, "うらやましく" is used to express the feeling of envy or yearning toward someone's possessions or achievements.
彼が新しい車を買ったのをうらやましく感じます。
I feel envious that he bought a new car.
In this sentence, "うらやましく" conveys the emotion triggered by observing someone enjoying an exceptional experience.
友達が海外旅行をしているのを見てうらやましくなりました。
I felt envious seeing my friend traveling abroad.
Here, "うらやましく" reflects the internal emotional response to hearing about someone's accomplishments.