突然死 とつぜんし Meanings Noun sudden death; unexpected death Kanji 突 thrust. Read as トツ. 然 -ly. Read as ゼン. 死 die. Read as シ. Words containing 突然死 乳幼児突然死症候群 (にゅうようじとつぜんししょうこうぐん) sudden infant death syndrome 幼児突然死症候群 (ようじとつぜんししょうこうぐん) sudden infant death syndrome Word lists Medicine Jinuma: Japanese Dictionary · Word lists