The antonyms for the word "more unidealistic" would be the words "more idealistic", "more optimistic", "more hopeful", "more positive", and "more romantic". These antonyms represent a different perspective on life, one that is focused on an idealized vision of what can be achieved, rather than a negative view of what cannot. They offer a different way of looking at the world, one that is more uplifting and motivating. By focusing on the positive aspects of life, we can find inspiration and hope for the future, and work towards achieving our goals with a renewed sense of purpose and passion.