孤独だった

was lonely

→ 孤独だ
phrase Rare #42,093
was lonely Describes someone as having felt or been lonely in the past.
JA: 一人でいるとき、彼は孤独だった。
EN: He was lonely when he was alone.

子供の頃から孤独だった

I've been lonely since I was a child.

— アメリ (2001)

彼女はまったく孤独だった。

She was completely alone.

私は孤独だった。

I was lonely.

遊び相手がなくて孤独だった。

I felt lonely because I had no one to play with.