1 adjective mercilessgan trua c m ugan trócaire c m ugan taiseshe was unsparing in her condemnation of uscáineadh an-ghéar a rinne sí orainnan unsparing handlámh gan trócairethis book is an unsparing eyewitness accounttugann an leabhar seo cuntas cruinn géar finné súl2 adjective boundless or freeas cuimse c m ufairsing adj1 c m uflúirseach adj1 c m uher unsparing energyan fuinneamh as cuimse atá aicihe was unsparing in his praise of the pupilsmhol sé na daltaí go hard na spéirehe was unsparing in his determination to get to the truthníor spáráil sé é féin chun teacht ar an bhfírinne