wedlock vs matrimony

wedlock and matrimony both are nouns.

Word	Noun	Adjective	Verb	Adverb
wedlock	Yes	No	No	No
matrimony	Yes	No	No	No

As nouns, wedlock and matrimony are synonyms defined as:

wedlock and matrimony: the state of being a married couple voluntarily joined for life (or until divorce)

Other synonyms of wedlock include marriage, spousal relationship, union.

wedlock (noun)	matrimony (noun)
the state of being a married couple voluntarily joined for life (or until divorce)	the ceremony or sacrament of marriage
	the state of being a married couple voluntarily joined for life (or until divorce)