† iˈrrefragate,a.Obs.rare. [f. ir-2 + L. refragātus, pa.pple. of refragārī: see irrefragable.] Uncontested, undisputed. a1592H. Smith Wks. (1867) II. 97 The palpable proofs they had by the cluster of grapes and other things which they brought from thence were irrefragate witness.