Antonyms for pillagers are people who preserve, protect, and respect property and resources. Some of the antonyms for pillagers include conservators, caretakers, defenders, and stewards. Conservators are people who maintain and protect the environment or cultural heritage. Caretakers, on the other hand, are individuals who are responsible for the safety and well-being of others, as well as their possessions. Defenders are those who fight against harm or destruction of assets, be it human or material. Finally, stewards are people who manage and maintain resources for future generations. Together, these antonyms embody the values of preservation, conservation, and respect for property and resources, which are crucial for the protection and sustainability of our planet.