ceaseless

But here, by carrying with me one ceaseless source of regret in my sister’s absence, I may reasonably hope to have all my expectations of pleasure realized.

I had a betrothed, Albert, a lovely girl whom I adored, and I was bringing to my betrothed a hundred and fifty louis, painfully amassed by ceaseless toil.

Residents found their communities irrevocably fractured, constantly grappling with the relentless noise and pervasive pollution generated by ceaseless traffic flows.