The antonyms for the phrase 'emits light' can vary depending on the context, but some common ones include 'absorbs light', 'blocks light', 'dims', 'darkens', 'shadows', and ' eclipses'. Instead of giving off light, these words suggest the opposite of emitting, which is removing or obstructing light. For example, a black hole is known for absorbing all the light that comes close to it, creating a darkness that is impossible to penetrate. Similarly, a thick fog or a dense cloud can block the light, reducing the visibility of things that would otherwise be seen. By using antonyms, we can create a contrast to describe the absence or presence of light in different situations.