mellowness vs property

mellowness and property both are nouns.

Word	Noun	Adjective	Verb	Adverb
mellowness	Yes	No	No	No
property	Yes	No	No	No

As nouns, property is a hypernym of mellowness; that is, property is a word with a broader meaning than mellowness:

mellowness (noun)	property (noun)
the property of a sensation that is rich and pleasing	any movable articles or objects used on the set of a play or movie
a soft shade of a color	a basic or essential property shared by all members of a class
geniality, as through the effects of alcohol or marijuana	a construct whereby objects or individuals can be distinguished
a taste (especially of fruit) that is ripe and of full flavor	any area set aside for a particular purpose
a feeling of good humor and sympathy through maturity or intoxication or a relaxed state	something owned; any tangible or intangible possession that is owned by someone