The antonyms for the phrase "became light" include words like dimmed, darkened, shadowed, and obscured. These words are used to describe the opposite of what happens when something becomes light. For example, when the day turns into night, the sky may become darkened, causing objects to appear in shadows. Similarly, when a room is suddenly plunged into darkness due to a power outage, the area becomes obscured, making it difficult to see. By knowing antonyms for commonly used phrases like "became light," we can better describe the world around us and communicate more effectively.