The term "break bulk" typically refers to the process of unloading and distributing a large shipment of goods. The opposite of this action would be to "consolidate" or "combine" the shipment into one unit for ease of transportation. Other antonyms for break bulk could include phrases such as "assembling," "compiling," or "gathering" the shipment, as well as "unitize," "compress," or "concentrate" it. These antonyms emphasize the opposite actions and goals of the break bulk process, which is to break down and distribute the shipment for sale to multiple recipients.