contestable
I
adjective
at issue, close, competing, confutable, controversial, controvertible, debatable, deniable, disputable, questionable, refutable
II
index
arguable, controversial, debatable, disputable, doubtful, dubious, dubitative, forensic, litigable, moot, polemic, problematic, speculative, uncertain (questionable), undecided
Burton's Legal Thesaurus.
William C. Burton.
2006