こうちょく 硬直 Common word Wanikani level 45 Play audio LinksSentence search for 硬直Sentence search for こうちょくKanji details for 硬 and 直Edit in JMdict Noun, Suru verb, Intransitive verb1. stiffening; rigidity; rigor; stiffness; ossification; petrification Discussions Log in to talk about this word.