The phrase "bold geometric patterns" refers to designs that are characterized by strong, bold lines and shapes. These patterns often feature repeating shapes such as squares, triangles or circles arranged in a visually striking way. They can be simple or complex, but what makes them stand out is their use of clean, sharp edges and the repetition of geometric forms. Bold geometric patterns are commonly used in textiles, wallpaper, architecture, and graphic design because they convey a sense of strength, stability, and timelessness.