1 adjective removed from ordinary lifetoirtéiseach adj1 c m ushe lived in that rarefied prosperous neighbourhood for yearschónaigh sí sa chomharsanacht chosanta shaibhir sin ar feadh na mbliantahe wanted a life beyond the rarefied world of educationbhí saol de dhíth air taobh amuigh de shaol teoranta an oideachaisshe loved the rarefied atmosphere of librariesb'aoibhinn léi an t-atmaisféar ar leith a bhí ag leabharlanna2 adjective (of air, gas) low in pressureéadlúiterarefied airaer éadlúite