The phrase "more workaday" implies something that is ordinary, mundane, or lacking in excitement. Its antonyms would be words that describe things that are unusual, extraordinary, or exhilarating. For example, words like extraordinary, exceptional, remarkable, and unique would all be antonyms of "more workaday." Other antonyms might include inspiring, adventurous, innovative, and creative. These words all suggest something that goes beyond the humdrum of everyday life and offers something special or out of the ordinary. So, whether you're looking to describe a person, place, or thing, using one of these antonyms will help you convey a sense of excitement, novelty, or inspiration.