The antonyms for the word "unimaginative" include creative, innovative, imaginative, original, inventive, resourceful, and clever. These words denote the ability to think outside the box, come up with new ideas, and approach problems in unconventional ways. People who are imaginative tend to be open-minded and have a natural curiosity about the world around them. They are not afraid to take risks and explore new possibilities. In contrast, those who are uncreative tend to think in black-and-white terms and are less likely to challenge the status quo. To be successful in today's fast-paced world, it's important to cultivate your creativity and strive to be more imaginative in your thinking.