zig·zag [zíg zàg]
1. line taking alternating turns: a line going at an angle first one way, then sharply the opposite way, then back the first way, and so on, like the outline of a saw’s teeth
2. something repeatedly switching directions sharply: something that follows a sharply alternating line or course, e.g. a road with sharp bends alternating right and left
3.Something having sharp angles or turns.