dim，faint，dejected，downcast，cloudily ；

[例句] 他黯然退出了世界政坛。 He bowed out of world politics not with a bang but a whimper.

[例句] 你如此聪明而且才华横溢,以致我的小小成就显得黯然无光. You are so clever and brilliant that my poor efforts are put into the shade.

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