Uneven, or irregular, refers to something that lacks uniformity or consistency in shape, size, or surface. This term can apply to various contexts, such as geography, where landforms like mountains or valleys may have uneven contours, or in art, where an irregular pattern can create visual interest. In mathematics, uneven numbers are those that cannot be divided evenly by two, such as 1, 3, and 5. In everyday life, an uneven surface, like a bumpy road, can affect travel and safety. Understanding the concept of unevenness helps in recognizing patterns and making sense of the world around us.