flash in the pan

Noun

A transient occurrence with no long-term effect. / A career notable for early success not followed by significant accomplishment.

Japanese Meaning

一時的な現象で、その後の長続きする効果や成功が見られないこと。 / 初期の成功があっても、その後に大きな成果が伴わないキャリアや出来事を指す。

Many critics dismissed the viral app as a flash in the pan, expecting its popularity to fade within weeks.

多くの批評家はそのバイラルアプリを一時的な成功に過ぎないと切り捨て、人気は数週間で消えるだろうと予想した。

Sense（1）

A transient occurrence with no long-term effect.

The concept turned out to be merely a flash in the pan and is no longer used.

Sense（2）

A career notable for early success not followed by significant accomplishment.

He was named best new director of 1940, but his career was a flash in the pan.

flashes in the pan

（ plural ）

flash in the pans

（ plural ）