Wiktionary
n. The revival of historical conceptions of the future in media and design.
Wikipedia
Retrofuturism (adjective retrofuturistic or retrofuture) is a trend in the creative arts showing the influence of depictions of the future produced in an earlier era. If "futurism is sometimes called a 'science' bent on anticipating what will come, retrofuturism is the remembering of that anticipation." Characterized by a blend of old-fashioned " retro" styles with futuristic technology, retrofuturism explores the themes of tension between past and future, and between the alienating and empowering effects of technology. Primarily reflected in artistic creations and modified technologies that realize the imagined artifacts of its parallel reality, retrofuturism can be seen as "an animating perspective on the world." But it has also manifested in the worlds of fashion, architecture, design, music, literature, film, and video games.