litigious vs contentious

litigious and contentious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
litigious	No	Yes	No	No
contentious	No	Yes	No	No

As adjectives, litigious and contentious are synonyms defined as:

litigious and contentious: inclined or showing an inclination to dispute or disagree, even to engage in law suits

Other synonyms of litigious include combative, disputatious, disputative.

litigious (adjective)	contentious (adjective)
of or relating to litigation	inclined or showing an inclination to dispute or disagree, even to engage in law suits
inclined or showing an inclination to dispute or disagree, even to engage in law suits	involving or likely to cause controversy