Enter a clue or pattern or both:
The Clue
Estival's opposite (8 letter answer)
The Answer
HIBERNAL
Tags
Notes
The answer HIBERNAL is so rare that it appears less than once every 2500 puzzles.
Definition
HIBERNAL as an adjective:
1. (brumal, hibernal, hiemal) = characteristic of or relating to winter; "bears in brumal sleep"