The antonyms for the word "more antithetic" would include terms such as similar, alike, corresponding, and analogous. These words indicate similarity or likeness between two or more objects, ideas, or concepts, rather than opposition or contrast. For instance, if two things share the same characteristics or traits, they would be considered similar or alike. Corresponding and analogous refer to things that are comparable or relatable in some way, while indicating a degree of similarity or agreement between them. In contrast, antithetic implies a clear opposition or contrast between things, suggesting that they are fundamentally different or incompatible.