Home › Words › R › restitutionismrestitutionismrestitutionism · noun — the belief in restitution, as of stolen goods to the person robbed.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom restitution + -ism.nounThe belief in restitution, as of stolen goods to the person robbed.Synonym of restorationism.Definitions & examples from Wiktionary (CC BY-SA 3.0).