致ち死し突とつ然ぜん変へん異いMeaningsNoun1. lethal mutationKanji used致politely do死death突thrust然sort of thing変change異differentPitch accentちしとつぜんへんいComposed of致ち死しlethal; fatalNo-adjective突とつ然ぜん変へん異いmutationNoun