Search gender: all male female Sadafuyu Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: sadafuyu Katakana: サダフユ 0 Kanji: 貞冬 Meaning: 貞Correct. The heart is right. 冬Winter. One of the four seasons. Refers to the period from December to around February. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Sadafuyu Name Meaning, Kanji Variations.