litigious
Concise Oxford English Dictionary © 2008 Oxford University Press:
litigious /lɪˈtɪdʒəs/
▶adjective tending to go to law to settle disputes.
■ concerned with lawsuits.
– derivatives
litigiously adverb,
litigiousness noun.
litigiously adverb,
litigiousness noun.
– origin ME: from OFr. litigieux or L. litigiosus from litigium ‘litigation’, from lis, lit- ‘lawsuit’.
'litigious' also found in these Oxford entries:

