1 adjective by substanceneamhéillithe adj3neamhthruaillithe adj3 c m uthe water is uncontaminatedníl aon truailliú san uisceuncontaminated beachestránna neamhthruaillithe2 adjective by ideology etcuncontaminated opinionstuairimí neamhthruaillithethe organisation is uncontaminated by politicsníl an eagraíocht millte ag an bpolaitíocht