うれしくて

happy, glad, pleased

→ 嬉しい
うれし happy, glad, pleased + く Adverbial form + て Te-form (conjunctive form)
adjective Rare #28,431
happy, glad, pleased The て-form of うれしい, often used to connect a feeling to what happens because of it.
JA: 会えてうれしくて、笑顔になった。
EN: I was so happy to see you that I smiled.
Forms of 嬉しい

うれしくて何回も聞きました

I was so happy that I listened to it over and over again.

— 別れる決心 (2022)

彼女は有名な歌手に会って、うれしくて我を忘れた。

She was so happy to meet the famous singer that she lost herself in the moment.

でもちょっとうれしくて

But I’m kind of happy.

— Love Letter (1995)

その少年はうれしくて叫んだ。

The boy shouted for joy.

おや、彼女はうれしくて泣いているの?

Oh, is she crying tears of joy?

うれしくて涙が出るよ。

I'm so happy, I could cry.

それを見てうれしくて背筋がぞくぞくした。

Seeing that sent shivers of joy down my spine.