táng tận lương tâm

== Vietnamese == === Etymology === Sino-Vietnamese word from 喪盡 and 良心. === Pronunciation === (Hà Nội) IPA(key): [taːŋ˧˦ tən˧˨ʔ lɨəŋ˧˧ təm˧˧] (Huế) IPA(key): [taːŋ˦˧˥ təŋ˨˩ʔ lɨəŋ˧˧ təm˧˧] (Saigon) IPA(key): [taːŋ˦˥ təŋ˨˩˨ lɨəŋ˧˧ təm˧˧] === Verb === táng tận lương tâm (idiomatic) to be cruel; to have no conscience