leaden
adj
1 dull, heavy or slow 沉闷的; 沉重的; 缓慢的
the leaden atmosphere of the museum 博物馆里那沉滞的气氛
a leaden heart 沉重的心
moving at a leaden pace 沉重而缓慢地移动.
2 lead-coloured; dull grey 铅灰色的; 暗灰色的
leaden clouds promising rain 预示有雨的铅灰色的云.
3 [attrib 作定语]
(dated 旧) made of lead 铅制的: leaden pipes 铅管.