くろうしょう 苦労性 LinksSentence search for 苦労性Sentence search for くろうしょうKanji details for 苦, 労 and 性Edit in JMdict Noun, Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)1. nervous temperament; worry habit; pessimistic nature; pessimism Discussions Log in to talk about this word.