chit-chat vs confabulate

chit-chat is a noun but confabulate is not a noun.

Word	Noun	Adjective	Verb	Adverb
chit-chat	Yes	No	Yes	No
confabulate	No	No	Yes	No

As verbs, chit-chat and confabulate are synonyms defined as:

chit-chat and confabulate: talk socially without exchanging too much information

Other synonyms of chit-chat include chaffer, chat, chatter, chew the fat, chitchat, claver, confab, gossip, jaw, natter, shoot the breeze, visit.

chit-chat (noun)	confabulate (noun)
light informal conversation for social occasions

chit-chat (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