筋張る すじばる Meanings Godan verb, Intransitive to become sinewy (e.g. of muscles); to become stringy; to become stiff to become stiff (of attitude or conversation); to become formal; to become ceremonial; to become awkward (of a situation) Kanji 筋 muscle. Read as すじ. 張 stretch. Read as はる. Jinuma: Japanese Dictionary · Word lists