chitchat vs confabulate

chitchat is a noun but confabulate is not a noun.

Word	Noun	Adjective	Verb	Adverb
chitchat	Yes	No	Yes	No
confabulate	No	No	Yes	No

As verbs, chitchat and confabulate are synonyms defined as:

chitchat and confabulate: talk socially without exchanging too much information

chitchat (noun)	confabulate (noun)
light informal conversation for social occasions

chitchat (verb)	confabulate (verb)
talk socially without exchanging too much information	talk socially without exchanging too much information
	have a conference in order to talk something over
	unconsciously replace fact with fantasy in one's memory