Most unassembled means that something has not been put together or assembled in its entirety to its maximum potential. Its antonyms can be "fully assembled", "complete", "whole", "entire", "integrated", "organized", or "finished". Antonyms of most unassembled can also be "assembled", "connected", "united", "intact", "joined", "completed", "operational", or "ready-to-go". These opposite meanings of the word most unassembled signify that the object or item has been put together in a particular pattern, and it is organized and ready to work or function as it was intended. Thus, whenever we come across the word most unassembled in our daily lives, we can think of its opposite meanings and the way it would be different when fully assembled.