To be dented or have an indentation; to cave in (physically).
自転車のライトがぶつかってバンパーが凹んだ。
The bumper got dented when the bicycle hit it.
アルミ缶は簡単に凹む。
Aluminum cans dent easily.
屋根が雪の重みで少し凹んだ。
The roof sagged a little under the weight of the snow.
To be overwhelmed or beaten; to yield or give in after being overpowered.
試合で相手に押されて、結局チームは凹んでしまった。
The team was overwhelmed by the opponent in the match and ended up beaten.
価格競争に凹んで利益が減った。
They were undercut in the price war and profits decreased.
Colloquial: to feel down or depressed; to be dispirited.
失敗して凹んでいるときは、少し休んだほうがいいよ。
If you're feeling down after a failure, it's better to rest a bit.
彼は注意されてすごく凹んでいた。
He was really down after being reprimanded.
予想外の結果に凹んだけれど、次に切り替えよう。
I was disappointed by the unexpected result, but I'll move on to the next thing.
To suffer a loss or decline; to decrease (e.g., profits, numbers).
売上が不況で大きく凹んだ。
Sales dropped sharply due to the recession.
夏場は需要が凹むことがある。
Demand sometimes dips in the summer.