The antonyms for the phrase "winded down" include rev up, speed up, intensify, escalate, and ignite. When we say that a situation is winding down, it means that it is coming to a close, and things are gradually slowing down. On the other hand, using antonyms such as rev up and speed up indicates that the situation is rapidly gaining momentum and picking up speed. Intensify and escalate imply an increase in the severity or magnitude of the situation, whereas ignite suggests that a spark is causing a sudden and significant change. These antonyms highlight the different ways that a situation can evolve, either winding down or gaining momentum depending on the circumstances.