Difference between Luxury and Luxuriousness

Luxury

Part of speech: adjective

Definition: very expensive

Part of speech: noun

Definition: very wealthy and comfortable surroundings. something desirable but expensive. something very pleasant but not really needed in life.

Example sentence: Wilderness is not a luxury but a necessity of the human spirit.

Luxuriousness

Part of speech: noun

Definition: The state or property of being luxurious, of being expensive or indulgently pleasant.