The antonyms for the word "most uncondensed" can be "condensed," "restricted," "compressed," and "narrowed." The opposite of something that is uncondensed would be something that has been condensed or compressed, resulting in a smaller size or less complexity. For instance, when talking about literature, an uncondensed version of a story might be called "verbose" or "rambling," while its antonyms may be "succinct," "abridged," or "truncated." In the context of science or chemistry, the antonym for "most uncondensed" could be "densely packed," "compacted," or "pressed," which refer to solid objects with little or no empty spaces between their molecules.