"Libratious" is a rare and little-used word meaning "full of scales," and it can be challenging to find proper synonyms that capture the same essence. However, some potential substitutes for "libratious" include "scaled," "scaly," "cuticular," "plate-like," and "armored." Each of these words carries its unique connotation and emphasizes a different aspect of the characteristics of scales. For instance, "scaled" and "scaly" are straightforward and commonly used alternatives that refer to the presence of scales on the surface of an object or creature. On the other hand, "cuticular," "plate-like," and "armored" suggest a more significant or protection-like aspect of scales.