The word "un-coils" refers to the act of untwisting or unwinding something. Its antonyms are words that are opposite in meaning and denote the act of coiling or winding. Examples of these antonyms include coil, wind, loop, twist, and curl. These words convey the opposite meaning of un-coils, suggesting the action of twisting or winding tightly or loosely. In the context of rope or wires, the act of coiling may refer to the process of bundling, wrapping or twisting them around a center axis, and is the opposite action of uncoiling, which is to loosen and untangle the rope or wire.