roaring
adj.adj. very loud, powerful, or successful. You use this to describe a deep sound like a lion's voice or a business that is doing extremely well.
adj. characterised by a deep, prolonged, and powerful sound; by extension, indicating great success or intensity. Often used in fixed collocations to describe prosperity or noise.
The business is a roaring success this year.
We sat by the roaring fire to warm up after our long walk in the snow.
The 1920s are often remembered as a roaring decade of economic expansion and cultural shift, though the prosperity was not shared equally across all social classes.
By surface analysis, roar + -ing.
Commonly used as an intensifying adjective in fixed phrases like 'roaring success', 'roaring fire', or 'roaring trade'.