しゅんそく 瞬速 LinksSentence search for 瞬速Sentence search for しゅんそくKanji details for 瞬 and 速Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. blindingly quick speed; (in) a flash; (in) the blink of an eyeSlang Discussions Log in to talk about this word.