The phrase "tossed a few crumbs" typically refers to a meager offering or a small gesture intended to placate or satisfy someone. However, there are many antonyms that would suggest a more generous, sincere, or significant action. Depending on the context, alternatives might include "lavished attention," "bestowed gifts," "provided ample support," or "sincerely apologized." Each of these antonyms carries a different connotation and might be appropriate in different situations. Ultimately, the appropriate antonym for "tossed a few crumbs" will depend on the tone, intent, and context of the original phrase.