[in.con.test.able] adj [F, fr. in- + contestable, fr. contester to contest] (1673): not contestable: indisputable -- in.con.test.abil.i.ty n -- in.con.test.ably adv
INCONTESTABLE
Meaning of INCONTESTABLE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012