con artist vs confidence man

con artist and confidence man both are nouns.

Word	Noun	Adjective	Verb	Adverb
con artist	Yes	No	No	No
confidence man	Yes	No	No	No

As nouns, con artist and confidence man are synonyms defined as:

con artist and confidence man: a swindler who exploits the confidence of his victim

Other synonyms of con artist include con man.

con artist (noun)	confidence man (noun)
a swindler who exploits the confidence of his victim	a swindler who exploits the confidence of his victim