Source : Webster's Revised Unabridged Dictionary (1913)

Irenic \I*ren"ic\, Irenical \I*ren"ic*al\, a. [Gr. ?.]
   Fitted or designed to promote peace; pacific; conciliatory;
   peaceful. --Bp. Hall.

Source : WordNet®

irenic
     adj : conducive to peace; "irenic without being namby-pamby"; "an
           irenic attitude toward former antagonists"