Synonyms of 'litigious'
contentiousDictionary, belligerent, argumentative
They are probably the most litigious people in the world.
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Someone who is argumentative is always ready to disagree or start quarrelling with other people.
You're in an argumentative mood today!
A belligerent person is hostile and aggressive.
He was almost back to his belligerent mood of twelve months ago.
Thesaurus for litigious from the Collins English Thesaurus
Someone who is litigious often makes formal complaints about people to a civil court of law.