misalliance vs wedlock

misalliance and wedlock both are nouns.

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

As nouns, wedlock is a hypernym of misalliance; that is, wedlock is a word with a broader meaning than misalliance:

misalliance: an unsuitable alliance (especially with regard to marriage)
wedlock: the state of being a married couple voluntarily joined for life (or until divorce)

Other hypernyms of misalliance include marriage, matrimony, spousal relationship, union.

misalliance (noun)	wedlock (noun)
an unsuitable alliance (especially with regard to marriage)	the state of being a married couple voluntarily joined for life (or until divorce)