Search gender: all male female Sadatsuna Boy Name Meaning, Kanji Variations. 2 names found. gender: all male female Name: sadatsuna Katakana: サダツナ 0 Kanji: 貞綱 Meaning: 貞Correct. The heart is right. 綱Rope Name: sadatsuna Katakana: サダツナ 0 Kanji: 定綱 Meaning: 定Decide. Calm down. To stabilize. To calm down. To settle down to a certain level and not move. Surely. Always. Clearly. 綱Rope You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Sadatsuna Boy Name Meaning, Kanji Variations.