The word "undeconstructable" refers to something that cannot be broken down or analyzed. Therefore, the antonyms for this word would be terms that suggest the opposite meaning. Some of these antonyms include "analyzable", "dissectible", "decomposable", "determined", "resolvable", "solvable", "explainable", "understandable", and "decodable". These words suggest that the object or concept in question can be examined, understood, and deciphered fully, which is the opposite of "undeconstructable." When someone uses words like these to describe a topic, they imply that it can be easily understood and broken down into smaller parts.