1179200 jmdict A [id=2180605]
凹む[ichi1]
へこむ[ichi1]
[1][v5m,vi]
  to be dented; to be indented; to yield; to give; to sink; to collapse; to cave in
[2][v5m,vi]
  to be beaten; to be overwhelmed; to yield; to give in; to give up
[3][v5m,vi][col]
  to be disheartened; to feel down; to feel depressed
  [see=2853912・ヘコむ[1]]
[4][v5m,vi]
  to suffer a loss; to lose