autumnal

adjective

au·​tum·​nal ȯ-ˈtəm-nəl 

: of, relating to, or characteristic of autumn

autumnal weather

autumnal colors

the autumnal equinox

I am often surprised to see rising amid these trees the rounded tops of apple-trees glowing with red or yellow fruit, in harmony with the autumnal tints of the forest.

—Henry David Thoreau

autumnally

ȯ-ˈtəm-nə-lē 

adverb

These days on the verge of winter were autumnally fair, struck through with warmth until the swift lengthening of the shadows.

—John Updike

Examples of autumnal in a Sentence

Recent Examples on the Web

This garden shows off its autumnal hues as does the Lower Woodland Garden with its gentian trees. —Jeanine Barone, Forbes.com, 8 Sep. 2025

Not only do autumnal colors blanket the region, but the cooler weather is more conducive to camping and the park’s events calendar includes several different seasonal activities. —Lydia Mansel, Southern Living, 8 Sep. 2025

With autumnal temperatures and the fall season nearly here, Jolie’s look highlighted the trenchcoat dress’ versatility. —Julia Teti, Footwear News, 8 Sep. 2025

If metallic bronze isn’t your aesthetic, the pumpkins come in a whopping 24 colors, including autumnal neutrals like classic orange and white, as well as fun bubblegum pink and aqua blue shades. —Mariana Best, Better Homes & Gardens, 5 Sep. 2025

Word History

Etymology

borrowed from Latin autumnālis, from autumnus autumn + -ālis -al entry 1

First Known Use

15th century, in the meaning defined above