Big words are used.
Amorphous: indefinite, shapeless
Cascade: steep waterfall
Cacophony: confused noise
Cataclysm: flood, catastrophe, upheaval
Coalesce: unite, or fuse
Decrepit: worn-out, run-down
Dulcet: sweet
Effervescent: bubbly
Enrapture: delighted
Ephemeral: fleeting
Epiphany: revelation
Ethereal: celestial, unworldly, immaterial
Evanescent: fleeting
Felicity: happiness, pleasantness
Grotesque: distorted, bizarre
Halcyon: care-free
Hirsute: hairy
Hoarse: harsh, grating
Leech: parasite,
Maladroit: clumsy
Idyllic: contentedly pleasing
Incorporeal: without form
Incandescent: glowing, radiant, brilliant, zealous
Ineffable: indescribable, unspeakable
Inexorable: relentless
Iridescent: luster
Languid: slow, listless
Mellifluous: smooth, sweet
Rancid: offensive, smelly
Repugnant: distasteful
Repulsive: disgusting
Shriek: sharp, screeching sound
Shrill: high-pitched sound
Shun: avoid, ostracize
Slaughter: butcher, carnage
Serene: peaceful
Tranquility: peacefulness
Visceral: crude, anatomically graphic
Zenith: highest point