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 buttery-looking Free People sweater has a mock neck and a particularly autumnal hue, and these 45-percent-off Levi’s jeans balance out its stylishly slouchy look. —Alyssa Grabinski, People.com, 8 July 2025

Persimmons are a sweet, autumnal fruit that falls from the Diospyros tree. —Anna Cecil, IndyStar, 2 July 2025

The change of seasons is marked by solstices or equinoxes, with the June solstice signaling the start of summer and the autumnal equinox in September signaling the end. —Kaycee Sloan, The Enquirer, 2 July 2025

Agnes, draped in autumnal tweed and khaki, elevates her seminar into a kind of allegorical stage for academia. —Katy Waldman, New Yorker, 29 June 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