The word "ne'er-do-well" refers to a person who is lazy, useless, and unproductive in society. Antonyms for ne'er-do-well include diligent, hardworking, productive, responsible, and useful. A diligent person is someone who is focused, persistent, and hardworking towards their goals. Unlike a ne'er-do-well, who shirks work and responsibility, a diligent person strives to be useful and productive in society. Similarly, a hardworking individual devotes their time and energy towards achieving success in their chosen fields. In contrast, a ne'er-do-well is content to sit around with no ambition or drive. Characters that are productive and responsible make a positive impact on society and are respected by their peers, unlike a ne'er-do-well.