The term "more brickwall" implies a sense of excess or surplus in the context of a physical structure such as a wall. The antonyms for "more" would be less or fewer, indicating a reduction or limitation in the amount of brick used to construct the wall. Similarly, the antonym for "brickwall" would be a porous or permeable structure such as a fence, trellis, or lattice. By applying the principles of antonymy, one can create a more nuanced vocabulary that reflects a range of meanings and allows for greater precision in communication.