amalgamate vs united

amalgamate and united both are adjectives.

Word	Noun	Adjective	Verb	Adverb
amalgamate	No	Yes	Yes	No
united	No	Yes	No	No

amalgamate (adjective)	united (adjective)
joined together into a whole	characterized by unity; being or joined into a single entity
	of or relating to two people who are married to each other
	involving the joint activity of two or more

amalgamate (verb)	united (verb)
to bring or combine together or with something else