ろうきゅう 老朽 Common word Wanikani level 58 LinksSentence search for 老朽Sentence search for ろうきゅうKanji details for 老 and 朽Edit in JMdict Noun, Suru verb, Intransitive verb1. infirmity (due to old age); decrepitude; senility; senescence; superannuation Discussions Log in to talk about this word.