John Quincy Adams vs President Adams

John Quincy Adams and President Adams both are nouns.

Word	Noun	Adjective	Verb	Adverb
John Quincy Adams	Yes	No	No	No
President Adams	Yes	No	No	No

As nouns, John Quincy Adams and President Adams are synonyms defined as:

John Quincy Adams and President Adams: 6th President of the United States; son of John Adams (1767-1848)

Other synonyms of John Quincy Adams include Adams, President John Quincy Adams.

John Quincy Adams (noun)	President Adams (noun)
6th President of the United States; son of John Adams (1767-1848)	2nd President of the United States (1735-1826)
	6th President of the United States; son of John Adams (1767-1848)