Used when someone recovers from an emotional low, suggesting a process. She was on the rebound after months of mourning her lost job.
Pro Tip 2/3
Temporary Phase
Implies that the improvement or recovery period is transitional and might change. He seemed happier on the rebound from his illness, but only time will tell.
Pro Tip 3/3
Positive Change
Emphasizes a shift towards a better state after something negative. Losing the match had her down, but now she's on the rebound.