1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Irrefragable  \Ir*ref"ra*ga*ble\,  a.  [F.  irr['e]fragable,  L. 
  irrefragabilis  See  {Refragable}.] 
  Not  refragable;  not  to  be  gainsaid  or  denied;  not  to  be 
  refuted  or  overthrown;  unanswerable;  incontestable; 
  undeniable;  as  an  irrefragable  argument;  irrefragable 
  evidence.  --  {Ir*ref"ra*ga*ble*ness},  n.  -- 
  {Ir*ref"ra*ga*bly},  adv 
 
  Syn:  Incontrovertible;  unanswerable;  indisputable; 
  unquestionable;  incontestable;  indubitable;  undeniable; 
  irrefutable. 

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