cloudless
Americanadjective
Other Word Forms
Etymology
Origin of cloudless
Explanation
Cloudless means bright and clear, like the blue, cloudless sky you're hoping for on the day of the big back-to-school picnic. When you look up and don't see a single cloud, you can describe the sky as cloudless. Cloudless skies mean no rain, no haze, and no fog. In the daytime, a cloudless sky is blue and bright, and a cloudless night sky is perfect for stargazing through a telescope. This adjective is formed by adding the suffix -less, "lacking," to cloud.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Space-time doesn’t just curve and expand; it also twists, oscillates, and sucks. Go outside on a cloudless night, and outer space will start sucking the heat right out of you.”
From The Wall Street Journal • May 15, 2026
Jaxson Dart, drafted by the Giants 25th overall last spring, made an unforgettable starting debut by knocking off the sluggish Chargers, 21-18, on a cloudless day at MetLife Stadium.
From Los Angeles Times • Sep. 28, 2025
"Clear air" turbulence is, as the name suggests, cloudless and cannot be seen.
From BBC • May 22, 2024
I'll be the first to admit that I quickly took to Google after Gadd's cloudless admission in the first episode's opening that "this is a true story," keen to learn more.
From Salon • Apr. 24, 2024
She closed her eyes, and tried to make her mind go blank and blue, like a wide, cloudless sky.
From "The Girl Who Drank the Moon" by Kelly Barnhill
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
