Wiktionary
det. increasingly less
Wikipedia
Less and Less (more completely Less and Less & I Don't Love You Anymore) is the debut album by American country music singer Charlie Louvin, released in 1964. The album is titled after Louvin's first two solo singles. Both reached the Billboard Country Singles top 40 chart; "Less and Less" reached number 27 and "I Don't Love You Anymore" peaked at number 4. "See the Big Man Cry" was released as a single in 1965 and reached number 7. The album reached number 6 on the Billboard Country Albums chart.
Usage examples of "less and less".
This was not heartless, it was just that as the months passed, her memories of him had faded and become, somehow, less and less likely.
Latie, verging on womanhood, Ayla noticed, played with them less and less.
That, like Those Who Must Be Kept, he had begun to drink less and less.
Those lords and their existing governments will have less and less power.
But as the troubles mounted in Palestine, Ari and Dafna had less and less time to spend together.