Antonyms for the word "most pastelike" include vibrant, bold, brilliant, colorful, vivid, garish, gaudy, loud, and flashy. These words describe colors that are bright, eye-catching, and bold instead of being muted and pale. While pastel colors can be soft and calming, these antonyms evoke energy and excitement. These colors are perfect for businesses or products that want to make a bold statement and grab attention. For example, a fast-food chain might use garish colors in their branding to evoke a sense of urgency and excitement. Overall, these antonyms for "most pastelike" bring a different kind of energy and excitement to the table, opposite to that of pastel colors.