1 noun also LING, PHIL chronological, logicalréamhtheachtaí masc4 c m uit has antecedentsbhí a mhacasamhail chéanna ann cheanait was an antecedent of nuclear energyréamhtheachtaí den fhuinneamh núicléach a bhí ann2 noun ancestorsinsear masc1 c m u3 adjective precedingréamh- prefthere were no antecedent conditions involvední raibh aon réamhchoinníollacha i gceist4 adjective LINGréamhtheachtach adj1 c m u