突き詰める つきつめる Also written 突きつめる, 突詰める Meanings Ichidan verb, Transitive to investigate thoroughly; to examine closely; to probe into; to get to the bottom of to be obsessed with a thought; to brood over; to worry about Kanji 突 thrust. Read as つく. 詰 pack. Read as つめる. Jinuma: Japanese Dictionary · Word lists