Wiktionary
untiringly
adv. In an untiring manner.
Usage examples of "untiringly".
In the end, he went out alone, the Indies paddling the big canoa untiringly up against the current.
Loustalot, Camille Desmoulins, Fréron, Danton, Marat, Pétion, Robespierre proclaim it untiringly in the political clubs, in the newspapers, and in the assembly.