不ふ信しん心じんConjugationsMeaningsNa-adjectiveNoun1. impiety; unbelief; infidelityKanji used不negative信belief心heartPitch accentふしんじんComposed of不ふ信しんdistrust; mistrust; disbelief; discredit; insincerity; impiety; faithlessnessNoun心しんheart; mind; spirit; vitality; inner strength; bottom of one's heart; core (of one's character); nature; centre; center; …Noun