'fleeting world' is correct and usable in written English.
It is typically used to describe the transient nature of life and the universe. For example, "In the midst of our everyday chaos, we must remember the beauty of this fleeting world."
A viewer has somewhat the same feeling when looking at the fleeting world of Watteau.
RIOULT The company of the consistent craftsman Pascal Rioult presents "Views of the Fleeting World," "Prelude to Night," and "Bolero".
Pretending to have forgotten her past, she takes her vows and turns her back on the fleeting world.
As for a career, he believes that jazz is more long-lasting than the fleeting world of rock.
RIOULT Sporting a streamlined new name, the company of the consistent craftsman Pascal Rioult tackles the tour de force of Bach's contrapuntal craft, "Art of Fugue," with "Views of the Fleeting World".
In La voz a ti debida (1934; "The Voice Inspired by You"; Eng. trans. Truth of Two and Other Poems), profoundly personal love experiences inspire subtle observations on the solidity of external reality and the fleeting world of subjective perception.
And I believe these ideas were organized toward one particular ambition: to visualize the possibility that a self could find a place in our fleeting modern world.
In this increasingly fleeting digital world, Riley's work seeks to physically memorialize moments that exist in digital life, from screenshots of text messages to stills grabbed from pornography.
Besides Nanga and Zenga, these include the well-mannered, decorative Rinpa tradition; the three idiosyncratic mavericks known as the Eccentrics; the Maruyama-Shijo artists who worked from nature and produced more readily accessible subject matter; and Ukiyo-e, popular for its idealized depictions of the "floating world" (read fleeting) of theaters and pleasure houses.
But fame is ever fleeting in the world of news.
The difficulty with such ambitious and highly topical reporting is that however carefully the observer tries to catch something permanent that might underlie the fleeting moment, the world is always changing before his readers' eyes.
