coherence vs connectedness

coherence and connectedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
coherence	Yes	No	No	No
connectedness	Yes	No	No	No

As nouns, connectedness is a hypernym of coherence; that is, connectedness is a word with a broader meaning than coherence:

Other hypernyms of coherence include connection, link.

coherence (noun)	connectedness (noun)
logical and orderly and consistent relation of parts	a relation between things or events (as in the case of one causing the other or sharing features with it)
the state of cohering or sticking together	the state of being connected