contentious vs litigious

contentious and litigious both are adjectives.

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

As adjectives, contentious and litigious are synonyms defined as:

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

Other synonyms of contentious include combative, disputatious, disputative.

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