The overall result of Table is the emergence of two stable Is it possible to realise frustrated 2D materials? In flexible electronics, a recently implemented frustrated-bilayer structure has applied a similar concept: one wavey layer is a stretchable elastomer layer, which is pre-stretched before a 2D material is transferred to it. When the stretching is released, the combined bilayer develops an out-of-plane wavey structure. This wavey structure is essentially a frustrated bilayer in which the elastomer layer's tendency to contract is resisted by the target 2D material's tendency to expand. However, unlike the frustration examined in this work, the bilayer preserves it flat structure, except for a few cases where the structural integrity is compromised, such as in Figure .