Definition of unrelentingly in US English:

unrelentingly

adverb

  • See unrelenting

    • ‘The guerrilla campaign of mass violence continued unrelentingly on Sunday.’
    • ‘The climb continued unrelentingly well into dusk all the way to the Sultana estate, where our second night's stay had been arranged.’
    • ‘No wonder then that the players, especially the home team, felt tense because spectators were unrelentingly severe on players who did not perform according to expectation.’
    • ‘On the other hand it is perpetually polluted, unrelentingly crowded, the weather is atrocious and the roads are horrific.’
    • ‘The Washington Post reports that the wave of violence in the Sunni Arab heartland continued unrelentingly on Thursday.’