overcast
/ˌəuvəˈkɑ:st; ?@ -ˈkst; ˌovɚ`kæst/ adj
(of the sky) covered with cloud （指天空）阴的, 多云的
a dark, overcast day 阴暗的一天
It's a bit overcast it might rain. 天有点阴--可能有雨.
(fig 比喻) a gloomy, overcast (ie unhappy) expression on his face 他愁眉苦脸.