The word "un-level" means something that is not even or balanced. Its antonyms include level, even, flat, balanced, stable, uniform, symmetrical, straight, flush, and harmonious. Level refers to something that is horizontal or equal in height. Even suggests something that is consistent or smooth. Flat refers to something that is level without any bumps, ridges, or curves. Balanced means something that is stable, evenly distributed, or in harmony. Stable refers to something that is secure, firm or unchanging. Uniform suggests something that is consistent in size or color. Symmetrical refers to something that is mirror image or proportional. Straight means something that is not bent or crooked. Flush means something that is even with its surroundings. Harmonious refers to something that is in agreement or accordance.