irrefragable

“Scarcity would always be the irrefragable regulatory device that — along with religion and moral dogma — would keep the youth in line with certain expectations,” Slater notes.

A further irrefragable evidence of the derivation of Catharism from Manich�ism is furnished by the sacred thread and garment which were worn by all the Perfect among the Cathari.

This principle, although true in a certain sense and within certain limits, is not to be proved irrefragable, as the basis of any theory should be.

Had not the means thus employed for the purpose been recorded and authenticated by the most irrefragable authorities, the sceptic might long pause before he would yield them credence.

And the King sets up no pretensions to any possessions, the right to which he cannot prove by irrefragable titles.”