settledness vs life-style

settledness and life-style both are nouns.

Word	Noun	Adjective	Verb	Adverb
settledness	Yes	No	No	No
life-style	Yes	No	No	No

As nouns, life-style is a hypernym of settledness; that is, life-style is a word with a broader meaning than settledness:

settledness: The quality or state of being fixed, permanent or stationary; established.
life-style: a manner of living that reflects the person's values and attitudes

Other hypernyms of settledness include life style, lifestyle, modus vivendi, permanence, permanency.

settledness (noun)	life-style (noun)
The quality or state of being fixed, permanent or stationary; established.	a manner of living that reflects the person's values and attitudes