[ir.re.fra.ga.ble] adj [LL irrefragabilis, fr. L in- + refragari to oppose, fr. re- + -fragari (as in suffragari to vote for); akin to L suffragium suffrage] (1533) 1: impossible to refute "~ arguments"
2: impossible to break or alter "~ rules" -- ir.re.fra.ga.bil.i.ty n -- ir.ref.ra.ga.bly adv