The antonyms for the word "head-lining" include downplaying, minimizing, underplaying, overshadowing and subordinating. When a topic or event is downplayed, it is not given the same level of importance or attention as it would be if it were headlining. Similarly, when something is overshadowed or underplayed, it is not given the same level of focus as it would be if it were a headline story. Subordinating, on the other hand, means giving less importance to something in favor of another thing. Therefore, these antonyms are useful when you want to convey the opposite of a headline or when you want to highlight the less important aspect of a story or event.