Smart Definition
Etymology
Pronunciation
irrecusable
irrefutable
ir-
not (negative prefix)
+
recuse
to challenge or object to
Irrecusable means irrefutable and can be understood as ir-0 (not0) + recuse1 (to challenge1), literally meaning 'not able to be challenged or objected to'.
adjective
  1. irrefutable
    That cannot be rejected or refused; undeniable
    La evidencia era irrecusable. // The evidence was irrefutable.