Save Gender Masculine Usage Japanese Scripts 信貞, 信定, etc.(Japanese Kanji) のぶさだ(Japanese Hiragana) Pronounced Pron. /no̞.bɯᵝ.sä.dä/ [key·simplify] Meaning & History From Japanese 信 (nobu) meaning "trust" and 貞 (sada) meaning "virtue, faithfulness, chastity" or 定 (sada) meaning "determine, establish, decide", as well as other kanji combinations that can form this name.