In the long years which had passed, Phillips had grown progressively weaker.
Extending beyond a specific length, the response would become progressively weaker.
Poddubny's knee felt strong at the beginning of training camp, but became progressively weaker.
He never missed a game or a practice, but the hip became progressively weaker.
By this point, Reed is growing progressively weaker as a result of his kidney disorder.
The ability becomes progressively weaker, and then the desire goes too.
The old man's voice had grown progressively weaker but his eyes were fierce.
The Plague, he believed, grew progressively weaker the deeper underground they went.
"Its design concept is badly flawed," he said, "and the management has gotten progressively weaker with time."
But his resolve not to open it grew progressively weaker.