The pathos and the wisecracks don't come at you with the usual relentlessness. Her career-best performance, she oozes intensity, love, hate, relentlessness and obsessive behaviour with perfection. He was well-known for his endurance, loyalty, and relentlessness. The relentlessness of "Scharnhorst"s fight was noted and respected by the victorious British commanding officers. Green Bay's coaching staff was impressed by Poppinga's high motor and relentlessness on every play. Susan's relentlessness drove Dan closer to Liz, however, and Susan didn't know what to do.