こうきゅう 降級 LinksSentence search for 降級Sentence search for こうきゅうKanji details for 降 and 級Edit in JMdict Noun, Suru verb, Transitive verb, Intransitive verb1. downgrading; demotion; degradation; lowering of position (or rank, etc.)Antonym: 昇級 Discussions Log in to talk about this word.