Definition
: of or relating to winter
About the Word
The English tongue has never been accused of being deficient in its collection of synonyms and near synonyms. It often appears that the language decided (if languages can decide things, which they cannot) that if it was good to have one word for a thing then having a half dozen must be better. And so we find ourselves with a large number of words having to do with describing winter. If you are tired of describing things as wintry, you can instead say that they are hiemal, hibernal, winterish, or brumal.
Example
“In the far North, it hibernates several months; on the Canadian border, this hiemal slumber lasts only for some weeks, with more or less frequent emergences during intervals of moderation…” Ernest Ingersoll - The Skunk, Calmly Considered, in Wild Neighbors, 1897