Prefab and Ready-to-wear

Prefab adjective - Manufactured in standard sizes to be shipped and assembled elsewhere.

Ready-to-wear and prefab are semantically related. In some cases you can use "Ready-to-wear" instead an adjective "Prefab".

Ready-to-wear adjective - (especially of clothing) made in standard sizes and available from merchandise in stock.

Prefab and ready-to-wear are semantically related. Sometimes you can use "Prefab" instead an adjective phrase "Ready-to-wear".