1 verb TRANSITIVEmoilligh verb c m ubac a chur ar c m uthis may retard growthd'fhéadfadh sé seo moill a chur ar fhásit retarded progress in this areachuir sé bac ar dhul chun cinn sa cheantar seo2 noun informal, offensive idiotbómán masc1 c m udúramán masc1 c m uare you a complete retard?an bómán amach is amach thú?I apologise for being such a retardmo leithscéal as bheith chomh dobhránta sin3 noun PSYCH, informal, offensive developmentallyduine mallintinneach offensive