a. 冬天的, 冬天发生的, 冬天出现的

[ adj ]
characteristic of or relating to winter
<adj.all>
bears in brumal sleep

Brumal \Bru"mal\, a. [L. brumalis, fr. bruma winter: cf. F.
brumal.]
Of or pertaining to winter. ``The brumal solstice.'' --Sir T.
Browne.