subdued
adjective uk/səbˈdʒuːd/ us/səbˈduːd/
(NOT STRONG)
（色彩或光线）柔和的，暗淡的
If a colour or light is subdued, it is not very bright.
subdued lighting 柔和的灯光
（声音）压低的，小声的
If a noise is subdued, it is not loud.
subdued laughter/cheers 窃窃的笑声／低声欢呼
(MOOD)
（人）闷闷不乐的，默不作声的
If a person is subdued, they are not as happy as usual or they are quieter than usual.
He seemed a bit subdued at lunch - is he all right? 午饭时他显得有点儿闷闷不乐——他没事吧？