Search gender: all male female Uima Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: uima Katakana: ウイマ 0 Kanji: 初真 Meaning: 初For the first time 真True. Truth, not falsehood. Nature as it is. True form. Innate. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Uima Boy Name Meaning, Kanji Variations.