進んでいた

was progressing; was advanced

→ 進む
phrase Rare #30,330
was progressing; was advanced The meaning depends on context: it can describe something moving forward, an event already underway, or a person, idea, or field being ahead of its time.
JA: 会議が予定より早く進んでいた。
EN: The meeting was progressing ahead of schedule.

軍隊は違う方向に進んでいた

The army was heading in a different direction.

メンデル彼の時代よりずっと進んでいたのはみんな知っている

Everyone knows that Mendel was far ahead of his time.

わたしが来たときパーティーはもうかなり進んでいた

The party was already well underway when I arrived.

彼の考え方は彼の生きていた時代よりはるかに進んでいた

His way of thinking was far ahead of his time.

科学ずっと進んでいたのにどうしてお墓だね

Even though science had been advancing all along, why is it a grave?

— 天空の城ラピュタ (1986)