It is arbitrary to determine, but still fun to consider, especially if a writer is a lover of words. In fact, I’ve never found our language to be so beautiful. So many things to play with; so many synonyms that mean such exquisitely distinct things.
What about some of these?
Ethereal
Antique
Luminosity
Gentle
Lagoon
Writhe
Supple
Epiphany
Nebulae
Melancholy
Quixotic
Meander
Cobweb
Salamander
Whimper
Penumbra
Hush
…Any to add?
What about pool, lush, skeletal, breeze.