What does billowy mean?
"Billowy" is an adjective describing things that swell or puff outward in large, soft, rounded masses, like ocean waves. It derives from "billow," a noun for a great wave, which English likely borrowed from Old Norse "bylgja." Today the word is applied most often to fabric, clothing, clouds, smoke, and hair — a billowy gown billows at the sleeves, and billowy clouds pile up on the horizon. Its connotations are gentle, romantic, and expansive rather than violent; it suggests volume and graceful motion rather than turbulence. Register is neutral to slightly literary, and it appears frequently in fashion and descriptive prose. A useful word precisely because it captures a quality — voluminous softness — that plainer adjectives like "big" or "puffy" convey only clumsily.
adjectiveCharacterized by or resembling billows; swelling out in large, rounded masses like waves. Often used to describe fabric, clouds, hair, or other soft things that puff outward voluminously.
- Swelling or puffing out in large, rounded masses like waves (of fabric, clouds, smoke, hair)
- Full of or characterized by billows; wavelike in motion or appearance
"She swept into the room in a billowy white gown."
"Billowy curtains rippled in the sea breeze."
"Smoke rose in billowy columns above the rooftops."
Before it described wedding dresses and cumulus clouds, "billow" was a sailor's word for the great swelling waves of the open sea — likely borrowed from Old Norse.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of billowy
The adjective "billowy" is formed from the noun "billow," meaning a great wave or swell of the sea, which appears in English from the 16th century. "Billow" itself is generally traced to Old Norse "bylgja" (wave), making it a nautical borrowing from the Scandinavian languages. The adjective arose later, extending the wave imagery to anything that swells in rounded masses, especially fabric and clouds. Related Scandinavian forms include Swedish "bölja" and Danish "bølge."
Related word forms
How billowy is actually used
Chiefly descriptive and slightly literary or evocative in register; common in fashion writing and nature description. Almost always used attributively before a noun.
Easily confused with billowy
"Willowy" means slender and gracefully tall, while "billowy" means swelling in full, rounded masses like waves — nearly opposite body-type descriptions.