Definition
'Billowy' describes something characterized by large, flowing waves or swells, often suggesting a soft, rounded shape. Think of clouds on a summer day or fabric caught in a gentle breeze. It implies a gentle movement, not harsh or abrupt. It's often used to describe things that are visually appealing and calming. A 'billowy' dress moves gracefully, while 'billowy' smoke rises in soft columns. The key is the combination of size and gentle undulation.