なさし 情け知らず LinksSentence search for 情け知らずSentence search for なさけしらずSentence search for 情知らずKanji details for 情 and 知Edit in JMdict Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi), Noun1. coldhearted; pitiless; merciless; heartlessOther forms情知らず 【なさけしらず】 Discussions Log in to talk about this word.